{"title":"Home Thyroid Blood Tests UK | TSH, T3, T4 and Antibodies","description":"\u003cstyle\u003e.imyth{--ink:#25221f;--soft:#66605a;--blue:#49666d;--navy:#263443;--gold:#b4996f;--ivory:#f3eee7;--paper:#fbfaf8;--line:#d7cdc3;background:#fff;color:var(--ink);font:16px\/1.7 inherit;overflow:hidden;container-type:inline-size}.imyth,.imyth *{box-sizing:border-box;min-width:0}.imyth img{display:block;max-width:100%}.imyth a{color:inherit;text-underline-offset:4px}.imyth h1,.imyth h2,.imyth h3{font-family:Georgia,\"Times New Roman\",serif;font-weight:400;line-height:1.12;margin:0}.imyth h1{font-size:clamp(42px,6.2vw,79px);letter-spacing:-.04em}.imyth h2{font-size:clamp(31px,4.3vw,54px);letter-spacing:-.025em}.imyth h3{font-size:clamp(23px,2.5vw,33px)}.imyth p{margin:0 0 16px}.imyth-wrap{width:min(1180px,calc(100% - 42px));margin:auto}.imyth-section{padding:clamp(54px,6.5vw,88px) 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.imyth-btn.light{border-color:#fff!important}.imyth-clinic .imyth-btn.dark{background:transparent!important;border-color:#fff!important}.imyth-review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:34px}.imyth-review{display:flex;flex-direction:column;border:1px solid var(--line);padding:22px;background:#fff}.imyth-review-top{display:grid;grid-template-columns:78px minmax(0,1fr);gap:15px;align-items:center}.imyth-review img{width:78px;height:78px;border-radius:50%;object-fit:cover}.imyth-review h3{font-size:25px}.imyth-role{color:var(--blue);font-size:12px;font-weight:700}.imyth-review\u003ep{color:var(--soft);font-size:15px;margin-top:16px}.imyth-review\u003ea{margin-top:auto;padding-top:12px;font-weight:800}.imyth-evidence{background:var(--ivory)}.imyth-source-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:30px}.imyth-source{background:#fff;border:1px solid var(--line);padding:18px}.imyth-source a{font-weight:800}.imyth-source p{color:var(--soft);font-size:14px;margin:7px 0 0}.imyth-faq details{border-bottom:1px solid var(--line);padding:16px 0}.imyth-faq summary{cursor:pointer;font:400 21px\/1.3 Georgia,\"Times New Roman\",serif}.imyth-faq p{color:var(--soft);margin:10px 0 0}.imyth-final{background:linear-gradient(135deg,#e7edef,#faf8f5);text-align:center}.imyth-final h2{max-width:900px;margin:auto}.imyth-final\u003ediv\u003ep:not(.imyth-eyebrow){max-width:730px;margin:20px auto 0;color:var(--soft);font-size:18px}.imyth-final .imyth-actions{margin:30px auto 0}.imyth-note{font-size:13px!important;color:var(--soft)!important;margin-top:24px!important}@container(max-width:980px){.imyth-hero-grid,.imyth-heading,.imyth-lab-grid,.imyth-clinic-grid{grid-template-columns:1fr}.imyth-hero-copy{padding:55px max(21px,calc((100vw - 1180px)\/2))}.imyth-hero-media{min-height:440px}.imyth-band-grid{grid-template-columns:repeat(2,1fr)}.imyth-band-item:nth-child(3){border-left:0}.imyth-product,.imyth-product.reverse{grid-template-columns:1fr}.imyth-product.reverse .imyth-product-media{order:0}.imyth-product-media{min-height:350px}.imyth-marker-grid,.imyth-pattern-grid{grid-template-columns:repeat(2,1fr)}.imyth-process{grid-template-columns:repeat(3,1fr)}.imyth-review-grid{grid-template-columns:1fr}}@container(max-width:680px){.imyth-wrap{width:min(100% - 28px,1180px)}.imyth-section{padding:46px 0}.imyth-actions,.imyth-band-grid,.imyth-paths,.imyth-gallery,.imyth-marker-grid,.imyth-pattern-grid,.imyth-process,.imyth-lab-images,.imyth-travel,.imyth-source-grid{grid-template-columns:1fr}.imyth-band-item{border-left:0;border-top:1px solid rgba(255,255,255,.18)}.imyth-band-item:first-child{border-top:0}.imyth-hero-media{min-height:340px}.imyth-product-media{min-height:290px;padding:8px}.imyth-product-body{padding:22px 18px}.imyth-specs\u003ediv{grid-template-columns:1fr;gap:3px}.imyth-product-action .imyth-btn{max-width:none}.imyth-btn{min-height:58px!important}.imyth-review-top{grid-template-columns:64px minmax(0,1fr)}.imyth-review img{width:64px;height:64px}}\u003c\/style\u003e\u003carticle class=\"imyth\"\u003e\u003cheader class=\"imyth-hero\"\u003e\u003cdiv class=\"imyth-hero-grid\"\u003e\n\u003cdiv class=\"imyth-hero-copy\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eDoctor led thyroid testing from Kingston\u003c\/p\u003e\n\u003ch1\u003eHome Thyroid Blood Tests UK\u003c\/h1\u003e\n\u003cp class=\"imyth-lead\"\u003eCompare a focused TSH, T3 and T4 home blood test with a broader thyroid hormone and antibody panel.\u003c\/p\u003e\n\u003cp\u003eThyroid symptoms are often gradual and non specific. Tiredness, weight change, palpitations, temperature sensitivity, bowel change, hair changes and mood symptoms may occur with thyroid dysfunction, but they may also have many other causes. Testing can provide selected laboratory context, not a diagnosis in isolation.\u003c\/p\u003e\n\u003cdiv class=\"imyth-actions\"\u003e\n\u003ca class=\"imyth-btn dark\" href=\"#tests\" rel=\"nofollow\"\u003e\u003cspan\u003eCompare both thyroid tests\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"imyth-btn light\" href=\"\/pages\/contact\" rel=\"nofollow\"\u003e\u003cspan\u003eContact the doctor led clinic\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"imyth-hero-media\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Thyroid_Function_Blood_Tests_UK.png?v=1785791094\" alt=\"Thyroid function blood tests available in the UK\" loading=\"eager\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\u003c\/header\u003e\u003csection class=\"imyth-band\"\u003e\u003cdiv class=\"imyth-wrap imyth-band-grid\"\u003e\n\u003cdiv class=\"imyth-band-item\"\u003e\n\u003csmall\u003eCollection\u003c\/small\u003e\u003cstrong\u003eTwo private home tests\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-band-item\"\u003e\n\u003csmall\u003eFocused route\u003c\/small\u003e\u003cstrong\u003eTSH, T3 and T4\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-band-item\"\u003e\n\u003csmall\u003eAdvanced route\u003c\/small\u003e\u003cstrong\u003eHormones with antibodies\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-band-item\"\u003e\n\u003csmall\u003eBoundary\u003c\/small\u003e\u003cstrong\u003eResults need clinical context\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cdiv class=\"imyth-heading\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eChoose the depth of information you need\u003c\/p\u003e\n\u003ch2\u003eFocused thyroid function or additional antibody context?\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-intro\"\u003e\n\u003cp\u003eThe focused test is the clearer route when the question concerns the relationship between TSH and circulating thyroid hormones. The advanced test is intended for a more specific question where thyroid antibody information is genuinely relevant.\u003c\/p\u003e\n\u003cp\u003eThe best choice is not automatically the panel with the most markers. A broader test can create findings that still need interpretation and may not explain the symptoms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-paths\"\u003e\n\u003cdiv class=\"imyth-path\"\u003e\n\u003cb\u003eFocused thyroid function\u003c\/b\u003e\u003cp\u003eUse when the main question concerns TSH, T3 and T4.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect view of thyroid signalling and circulating hormones\u003c\/li\u003e\n\u003cli\u003eMay support discussion of underactive or overactive patterns\u003c\/li\u003e\n\u003cli\u003eDoes not include thyroid antibody context\u003c\/li\u003e\n\u003cli\u003eMay still require repeat or venous testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-path\"\u003e\n\u003cb\u003eAdvanced thyroid context\u003c\/b\u003e\u003cp\u003eUse when the additional antibody measurements have a defined purpose.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines thyroid function with antibody information\u003c\/li\u003e\n\u003cli\u003eMay support selected autoimmune thyroid questions\u003c\/li\u003e\n\u003cli\u003eAntibody positivity does not prove current dysfunction\u003c\/li\u003e\n\u003cli\u003eNot automatically more useful for general symptoms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-alert\"\u003e\n\u003cstrong\u003eUrgent symptoms should not wait for home testing\u003c\/strong\u003e\u003cp\u003eChest pain, severe breathlessness, fainting, marked confusion or agitation, a very fast or irregular heartbeat, severe weakness or neck swelling affecting breathing or swallowing require prompt medical assessment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-editorial\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cdiv class=\"imyth-heading\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eSymptoms and context\u003c\/p\u003e\n\u003ch2\u003eA thyroid symptom checklist cannot confirm thyroid disease\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-intro\"\u003e\u003cp\u003eSymptoms may suggest that thyroid testing is reasonable, but they cannot identify the cause. Medicines, pregnancy, recent illness, nutritional status, sleep, mental health, cardiovascular conditions and other endocrine disorders may create a similar picture.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-gallery\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/lifestyle_8.png?v=1785791095\" alt=\"Person reviewing thyroid blood testing guidance at home\" loading=\"lazy\"\u003e\u003cfigcaption\u003e\u003cb\u003eReview the context before collecting\u003c\/b\u003e\u003cspan\u003eRecord medicines, supplements, pregnancy status, recent illness and previous thyroid results.\u003c\/span\u003e\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/lifestyle_2.png?v=1785791095\" alt=\"Private home blood test kit and thyroid information\" loading=\"lazy\"\u003e\u003cfigcaption\u003e\u003cb\u003eCollect privately and follow the exact instructions\u003c\/b\u003e\u003cspan\u003eSample timing, handling and return requirements may differ between products.\u003c\/span\u003e\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section\" id=\"tests\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eIt’s Me \u0026amp; You Clinic collection\u003c\/p\u003e\n\u003ch2\u003ePrivate home thyroid blood tests\u003c\/h2\u003e\n\u003cp class=\"imyth-intro\"\u003eThese two product routes preserve the intended scope of the supplied collection while using It’s Me \u0026amp; You Clinic links, imagery and completely rewritten clinical guidance.\u003c\/p\u003e\n\u003cdiv class=\"imyth-products\"\u003e\n\u003carticle class=\"imyth-product\"\u003e\u003ca class=\"imyth-product-media\" href=\"\/products\/thyroid-function-test\" rel=\"nofollow\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Thyroid_Function_Blood_Test_Home_Kit_UK.png?v=1785715640\" alt=\"Thyroid Function Blood Test Home Kit UK\" loading=\"lazy\"\u003e\u003c\/a\u003e\u003cdiv class=\"imyth-product-body\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eTSH, T3 and T4\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"\/products\/thyroid-function-test\" rel=\"nofollow\"\u003eThyroid Function Blood Test Home Kit UK\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003eA focused thyroid function route for people who want pituitary signalling and circulating thyroid hormones considered together.\u003c\/p\u003e\n\u003cdl class=\"imyth-specs\"\u003e\n\u003cdiv\u003e\n\u003cdt\u003eFocus\u003c\/dt\u003e\n\u003cdd\u003eTSH, T3 and T4 as listed on the product page\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eMay be relevant when\u003c\/dt\u003e\n\u003cdd\u003eA defined first look at thyroid function or a clinician directed monitoring question\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eImportant limit\u003c\/dt\u003e\n\u003cdd\u003eDoes not provide thyroid antibody context and cannot diagnose the cause of symptoms by itself\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cdiv class=\"imyth-product-action\"\u003e\u003ca class=\"imyth-btn light\" href=\"\/products\/thyroid-function-test\" rel=\"nofollow\"\u003e\u003cspan\u003eView test details\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/article\u003e\u003carticle class=\"imyth-product reverse\"\u003e\u003ca class=\"imyth-product-media\" href=\"\/products\/advanced-thyroid-hormones\" rel=\"nofollow\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Advanced_Thyroid_Blood_Test_Home_Kit_UK.png?v=1785710771\" alt=\"Advanced Thyroid Blood Test Home Kit UK\" loading=\"lazy\"\u003e\u003c\/a\u003e\u003cdiv class=\"imyth-product-body\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eHormones and antibodies\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"\/products\/advanced-thyroid-hormones\" rel=\"nofollow\"\u003eAdvanced Thyroid Blood Test Home Kit UK\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003eA broader thyroid route for people who specifically need the additional thyroid antibody measurements listed on the product page.\u003c\/p\u003e\n\u003cdl class=\"imyth-specs\"\u003e\n\u003cdiv\u003e\n\u003cdt\u003eFocus\u003c\/dt\u003e\n\u003cdd\u003eThyroid function markers with the listed antibody measurements\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eMay be relevant when\u003c\/dt\u003e\n\u003cdd\u003eA selected autoimmune thyroid question where antibody context is relevant\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eImportant limit\u003c\/dt\u003e\n\u003cdd\u003ePositive antibodies do not establish current thyroid dysfunction and a larger panel is not automatically more useful\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cdiv class=\"imyth-product-action\"\u003e\u003ca class=\"imyth-btn light\" href=\"\/products\/advanced-thyroid-hormones\" rel=\"nofollow\"\u003e\u003cspan\u003eView test details\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-compare\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eSide by side comparison\u003c\/p\u003e\n\u003ch2\u003eCompare focused and advanced thyroid testing\u003c\/h2\u003e\n\u003cdiv class=\"imyth-table-wrap\"\u003e\u003ctable class=\"imyth-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTest\u003c\/th\u003e\n\u003cth\u003eMain scope\u003c\/th\u003e\n\u003cth\u003eMay be relevant when\u003c\/th\u003e\n\u003cth\u003eImportant limit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/thyroid-function-test\" rel=\"nofollow\"\u003e\u003cstrong\u003eFocused Thyroid Function Test\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eTSH, T3 and T4\u003c\/td\u003e\n\u003ctd\u003eA direct thyroid function question or clinician directed monitoring need\u003c\/td\u003e\n\u003ctd\u003eDoes not include the antibody information in the advanced panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/advanced-thyroid-hormones\" rel=\"nofollow\"\u003e\u003cstrong\u003eAdvanced Thyroid Test\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eThyroid function with the listed antibody measurements\u003c\/td\u003e\n\u003ctd\u003eA selected autoimmune thyroid question\u003c\/td\u003e\n\u003ctd\u003eAntibodies do not diagnose current hypo or hyperthyroidism by themselves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003ePlain English biomarker guide\u003c\/p\u003e\n\u003ch2\u003eWhat thyroid hormones and antibodies may show\u003c\/h2\u003e\n\u003cdiv class=\"imyth-marker-grid\"\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eTSH\u003c\/b\u003e\u003cp\u003eA pituitary hormone that signals the thyroid. Its meaning depends on T3, T4, medicines, pregnancy, illness and the laboratory range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eT4\u003c\/b\u003e\u003cp\u003eThe principal hormone released by the thyroid. Free T4 is considered with TSH when reviewing possible underactive or overactive patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eT3\u003c\/b\u003e\u003cp\u003eThe more biologically active thyroid hormone. It can be particularly relevant in selected suspected hyperthyroid patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eThyroid peroxidase antibodies\u003c\/b\u003e\u003cp\u003eThese may support autoimmune thyroid context where included. They do not show current thyroid function on their own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eThyroglobulin antibodies\u003c\/b\u003e\u003cp\u003eAnother possible marker of thyroid autoimmunity. Their presence requires interpretation with the wider biochemical pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-marker\"\u003e\n\u003cb\u003eReference intervals\u003c\/b\u003e\u003cp\u003eRanges are method specific. Results should not be compared casually with a different laboratory or online range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-editorial\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eUnderstanding result patterns\u003c\/p\u003e\n\u003ch2\u003eWhy thyroid results should be interpreted together\u003c\/h2\u003e\n\u003cdiv class=\"imyth-pattern-grid\"\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eRaised TSH with lower T4\u003c\/b\u003e\u003cp\u003eMay fit a primary hypothyroid pattern, but diagnosis and cause require clinical assessment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eLow TSH with raised T4 or T3\u003c\/b\u003e\u003cp\u003eMay fit a hyperthyroid pattern, although medicines, pregnancy and assay interference can mislead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eAbnormal TSH with normal hormones\u003c\/b\u003e\u003cp\u003eMay require repeat testing and context before it is labelled or treated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003ePositive antibodies with normal hormones\u003c\/b\u003e\u003cp\u003eCan indicate autoimmune tendency without proving current thyroid dysfunction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eSymptoms with normal tests\u003c\/b\u003e\u003cp\u003eAnother cause may need assessment. Normal thyroid results do not explain the symptoms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eUnexpected or contradictory results\u003c\/b\u003e\u003cp\u003eRepeat testing, venous sampling or laboratory discussion may be appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003ePreparation and accuracy\u003c\/p\u003e\n\u003ch2\u003eBefore taking a home thyroid blood test\u003c\/h2\u003e\n\u003cdiv class=\"imyth-pattern-grid\"\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eRecord thyroid medicines\u003c\/b\u003e\u003cp\u003eInclude levothyroxine, liothyronine, carbimazole, propylthiouracil and the timing of the most recent dose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eList other medicines\u003c\/b\u003e\u003cp\u003eLithium, amiodarone, steroids and other medicines may affect thyroid physiology or interpretation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eRecord biotin\u003c\/b\u003e\u003cp\u003eHigh dose biotin can interfere with selected thyroid immunoassays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eNote pregnancy\u003c\/b\u003e\u003cp\u003ePregnancy requires trimester aware interpretation and a clinician led pathway.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003eNote recent illness\u003c\/b\u003e\u003cp\u003eAcute illness may temporarily alter thyroid results and make interpretation less straightforward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-pattern\"\u003e\n\u003cb\u003ePlan follow up\u003c\/b\u003e\u003cp\u003eUnexpected results may require repeat testing, venous sampling or GP or endocrine review.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"imyth-note\"\u003eDo not start, stop or change prescribed thyroid medicine because of one home result without advice from the clinician responsible for your treatment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-editorial\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eFrom order to result\u003c\/p\u003e\n\u003ch2\u003eHow home thyroid testing works\u003c\/h2\u003e\n\u003cdiv class=\"imyth-process\"\u003e\n\u003cdiv class=\"imyth-step\"\u003e\n\u003ci\u003e1\u003c\/i\u003e\u003cb\u003eChoose\u003c\/b\u003e\u003cp\u003eSelect focused thyroid function or the advanced antibody route.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-step\"\u003e\n\u003ci\u003e2\u003c\/i\u003e\u003cb\u003ePrepare\u003c\/b\u003e\u003cp\u003eRead the instructions and record medicines, supplements and clinical context.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-step\"\u003e\n\u003ci\u003e3\u003c\/i\u003e\u003cb\u003eCollect\u003c\/b\u003e\u003cp\u003eUse the supplied equipment and provide the required blood sample.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-step\"\u003e\n\u003ci\u003e4\u003c\/i\u003e\u003cb\u003eReturn\u003c\/b\u003e\u003cp\u003ePackage and return the sample through the specified pathway promptly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-step\"\u003e\n\u003ci\u003e5\u003c\/i\u003e\u003cb\u003eReview\u003c\/b\u003e\u003cp\u003eRead the complete pattern and arrange appropriate clinical follow up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-lab\"\u003e\u003cdiv class=\"imyth-wrap imyth-lab-grid\"\u003e\n\u003cdiv class=\"imyth-lab-copy\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eLaboratory analysis and reporting\u003c\/p\u003e\n\u003ch2\u003eA defined pathway after the sample leaves your home\u003c\/h2\u003e\n\u003cp\u003eTSH, T3, T4 and thyroid antibody measurements use assay specific methods and quality controls. The sample must be identified, accepted, analysed using the appropriate method and reported through the relevant secure pathway.\u003c\/p\u003e\n\u003cp\u003eLaboratory, accreditation, sample stability and reporting details can differ between products. Check the current individual product specification rather than assuming one standard applies across the collection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-lab-images\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Laboratoryand_Testing_Standards.png?v=1785791094\" alt=\"Laboratory and testing standards for It’s Me and You Clinic home blood tests\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Laboratory_Analysed_Testing_You_Can_Approach_with_Confidence.png?v=1785791094\" alt=\"Laboratory analysed home blood testing information\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-clinic\"\u003e\u003cdiv class=\"imyth-wrap imyth-clinic-grid\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eClinic address\u003c\/p\u003e\n\u003cdiv class=\"imyth-address\"\u003eOffice 7\u003cbr\u003eGround floor\u003cbr\u003eSiddeley House\u003cbr\u003e50 Canbury Park Road\u003cbr\u003eKingston upon Thames\u003cbr\u003eKT2 6LX\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-clinic-copy\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eDoctor led care in Kingston\u003c\/p\u003e\n\u003ch2\u003eSupport when thyroid symptoms or results need more individual judgement\u003c\/h2\u003e\n\u003cp\u003eIt’s Me \u0026amp; You Clinic is led by Dr Laura Geige and is located around five minutes from Kingston station. The clinic is convenient for Kingston, Norbiton, Surbiton, Richmond, Hampton Wick, New Malden and neighbouring Surrey areas.\u003c\/p\u003e\n\u003cp\u003eThe Rotunda, Bentall Centre, Fenwick, cafés and Kingston riverside are nearby. Drivers can use central off street parking serving the Bentall Centre and the wider town centre.\u003c\/p\u003e\n\u003cdiv class=\"imyth-travel\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eBy train\u003c\/b\u003e\u003cspan\u003eKingston station is around five minutes away on foot.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eNearby\u003c\/b\u003e\u003cspan\u003eThe Rotunda, Bentall Centre, Fenwick and riverside cafés.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eBy car\u003c\/b\u003e\u003cspan\u003eCentral off street car parks serve Kingston town centre.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLocal reach\u003c\/b\u003e\u003cspan\u003eKingston, Norbiton, Surbiton, Richmond and Surrey.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-actions\"\u003e\n\u003ca class=\"imyth-btn light\" href=\"\/pages\/contact\" rel=\"nofollow\"\u003e\u003cspan\u003eContact the clinic\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"imyth-btn dark\" href=\"tel:+447754339478\" rel=\"nofollow\"\u003e\u003cspan\u003eCall 07754 339478\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section\" id=\"medical-review\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eMedical and editorial review\u003c\/p\u003e\n\u003ch2\u003eMedical oversight, endocrine context and patient pathway review\u003c\/h2\u003e\n\u003cp class=\"imyth-intro\"\u003eThe page has been reviewed for symptom boundaries, thyroid biomarker context, medicine and biotin cautions, pregnancy safeguards, assay limitations and appropriate follow up.\u003c\/p\u003e\n\u003cdiv class=\"imyth-review-grid\"\u003e\n\u003carticle class=\"imyth-review\"\u003e\u003cdiv class=\"imyth-review-top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/5W4A9892_9e45e82d-91ac-4b28-8ce0-0ce35f7136c0.jpg?v=1785074197\" alt=\"Portrait of Dr Laura Geige\" loading=\"lazy\"\u003e\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eMedical oversight\u003c\/p\u003e\n\u003ch3\u003eDr Laura Geige\u003c\/h3\u003e\n\u003cdiv class=\"imyth-role\"\u003eMedical Doctor, Aesthetic Practitioner and Clinic Founder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eReviewed urgent symptoms, medicine related cautions, referral wording and the distinction between laboratory information and diagnosis.\u003c\/p\u003e\n\u003ca href=\"\/pages\/dr-laura-geige\" rel=\"nofollow\"\u003eView professional profile\u003c\/a\u003e\u003c\/article\u003e\u003carticle class=\"imyth-review\"\u003e\u003cdiv class=\"imyth-review-top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/rimas-geiga.webp?v=1755337643\" alt=\"Portrait of Dr Rimas Geiga\" loading=\"lazy\"\u003e\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eEndocrine context\u003c\/p\u003e\n\u003ch3\u003eDr Rimas Geiga\u003c\/h3\u003e\n\u003cdiv class=\"imyth-role\"\u003eMedical Doctor and Nutritional Sciences Adviser\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eReviewed TSH, T3, T4 and antibody explanations, symptom overlap, preparation factors and responsible interpretation of abnormal patterns.\u003c\/p\u003e\n\u003ca href=\"\/pages\/dr-rimas-geiga\" rel=\"nofollow\"\u003eView professional profile\u003c\/a\u003e\u003c\/article\u003e\u003carticle class=\"imyth-review\"\u003e\u003cdiv class=\"imyth-review-top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Veronika_Matutyte_Doctor.jpg?v=1785074986\" alt=\"Portrait of Veronika Matutyte\" loading=\"lazy\"\u003e\u003cdiv\u003e\n\u003cp class=\"imyth-eyebrow\"\u003ePatient pathways\u003c\/p\u003e\n\u003ch3\u003eVeronika Matutyte\u003c\/h3\u003e\n\u003cdiv class=\"imyth-role\"\u003eMedical Doctor and Healthcare Management Expert\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eReviewed laboratory pathways, biotin and medicine cautions, pregnancy safeguards, privacy and next step guidance.\u003c\/p\u003e\n\u003ca href=\"\/pages\/veronika-matutyte-medical-doctor-healthcare-management-expert-and-advisory-board-member\" rel=\"nofollow\"\u003eView professional profile\u003c\/a\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cp class=\"imyth-note\"\u003eMedical and editorial review date: 4 August 2026. General website information is educational and does not replace individual medical advice.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-evidence\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eUK guidance and further reading\u003c\/p\u003e\n\u003ch2\u003eSelected official and peer reviewed sources\u003c\/h2\u003e\n\u003cdiv class=\"imyth-source-grid\"\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/www.nice.org.uk\/guidance\/ng145\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNICE: Thyroid disease assessment and management\u003c\/a\u003e\u003cp\u003eUK guidance on thyroid testing, interpretation, antibody use, treatment and follow up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/www.nhs.uk\/conditions\/underactive-thyroid-hypothyroidism\/diagnosis\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNHS: Diagnosing an underactive thyroid\u003c\/a\u003e\u003cp\u003ePatient guidance explaining the role of TSH and thyroid hormone testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/www.nhs.uk\/conditions\/overactive-thyroid-hyperthyroidism\/diagnosis\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNHS: Diagnosing an overactive thyroid\u003c\/a\u003e\u003cp\u003ePatient guidance on thyroid blood testing and further investigations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/www.gloshospitals.nhs.uk\/our-services\/services-we-offer\/pathology\/tests-and-investigations\/thyroid-function-tests-tsh-ft4-ft3\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNHS pathology: TSH, FT4 and FT3\u003c\/a\u003e\u003cp\u003eLaboratory information on the principal thyroid function measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC5922674\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eClinical review: Interpreting thyroid function tests\u003c\/a\u003e\u003cp\u003eA peer reviewed discussion of physiology, assay limitations and discordant patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imyth-source\"\u003e\n\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/29982406\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eReview: Interference with thyroid immunoassays\u003c\/a\u003e\u003cp\u003ePeer reviewed context for biotin and other causes of misleading thyroid results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-faq\" id=\"faqs\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eFrequently asked questions\u003c\/p\u003e\n\u003ch2\u003eHome thyroid blood tests\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich home thyroid test should I choose?\u003c\/summary\u003e\u003cp\u003eChoose the focused test when the main question concerns TSH, T3 and T4. Choose the advanced panel only when the additional thyroid antibody measurements are specifically relevant.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I take a thyroid blood test at home?\u003c\/summary\u003e\u003cp\u003eYes. These products use home sample collection followed by laboratory analysis. Follow the registration, collection and return instructions supplied with the selected kit.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does the focused thyroid test measure?\u003c\/summary\u003e\u003cp\u003eIt reports TSH, T3 and T4 as stated on the product page. These are considered together to assess the thyroid hormone pattern.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan a home thyroid test diagnose hypothyroidism?\u003c\/summary\u003e\u003cp\u003eNo. Results require interpretation with symptoms, medicines, pregnancy status, illness and sometimes repeat or venous testing.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan the advanced test identify Hashimoto’s disease?\u003c\/summary\u003e\u003cp\u003eIt provides hormone and antibody context, but antibodies do not by themselves establish current thyroid dysfunction or explain every symptom.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I test while taking levothyroxine?\u003c\/summary\u003e\u003cp\u003eTesting may form part of monitoring, but timing relative to the dose can matter. Follow the instructions of the clinician managing your treatment.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan biotin affect a thyroid blood test?\u003c\/summary\u003e\u003cp\u003eYes. High dose biotin may interfere with selected laboratory immunoassays. Record all supplements before testing.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDo I need to fast?\u003c\/summary\u003e\u003cp\u003ePreparation depends on the exact product. Follow the current instructions supplied with the kit.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use a home thyroid test during pregnancy?\u003c\/summary\u003e\u003cp\u003ePregnancy requires trimester aware interpretation and prompt clinical follow up where thyroid disease is suspected. Do not rely on a home result alone.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat if my result is outside the reference range?\u003c\/summary\u003e\u003cp\u003eRead the laboratory commentary and arrange clinical follow up. Repeat testing, a venous sample or specialist assessment may be appropriate.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat if I have symptoms but normal thyroid results?\u003c\/summary\u003e\u003cp\u003eThyroid symptoms are non specific. Other physical or psychological causes may need assessment.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan a blood test assess a thyroid lump?\u003c\/summary\u003e\u003cp\u003eNo. Blood tests assess thyroid biochemistry rather than the structure of a lump or nodule. Neck swelling may require examination and imaging.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"imyth-section imyth-final\"\u003e\u003cdiv class=\"imyth-wrap\"\u003e\n\u003cp class=\"imyth-eyebrow\"\u003eChoose with clarity\u003c\/p\u003e\n\u003ch2\u003eStart with the level of thyroid information that matches the question\u003c\/h2\u003e\n\u003cp\u003eCompare the focused and advanced home testing routes when laboratory context is appropriate, or contact the doctor led Kingston clinic when symptoms, medicines, pregnancy or previous results make the next step less straightforward.\u003c\/p\u003e\n\u003cdiv class=\"imyth-actions\"\u003e\n\u003ca class=\"imyth-btn dark\" href=\"#tests\" rel=\"nofollow\"\u003e\u003cspan\u003eCompare both thyroid tests\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"imyth-btn light\" href=\"\/pages\/contact\" rel=\"nofollow\"\u003e\u003cspan\u003eContact It’s Me \u0026amp; You Clinic\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp class=\"imyth-note\"\u003eThese tests provide selected laboratory information and do not replace medical assessment, diagnosis, emergency care or treatment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"CollectionPage\",\"MedicalWebPage\"],\"@id\":\"https:\/\/itsmeandyou.co.uk\/collections\/thyroid-blood-tests#page\",\"url\":\"https:\/\/itsmeandyou.co.uk\/collections\/thyroid-blood-tests\",\"name\":\"Thyroid Blood Tests UK\",\"description\":\"Compare doctor led home thyroid blood tests for TSH, T3, T4 and thyroid antibody context from It’s Me \u0026 You Clinic.\",\"inLanguage\":\"en-GB\",\"dateModified\":\"2026-08-04\",\"about\":[\"Thyroid function\",\"TSH\",\"T3\",\"T4\",\"Thyroid antibodies\",\"Hypothyroidism\",\"Hyperthyroidism\",\"Home blood testing\"],\"mainEntity\":{\"@id\":\"https:\/\/itsmeandyou.co.uk\/collections\/thyroid-blood-tests#products\"},\"reviewedBy\":[{\"@id\":\"https:\/\/itsmeandyou.co.uk\/pages\/dr-laura-geige#person\"},{\"@id\":\"https:\/\/itsmeandyou.co.uk\/pages\/dr-rimas-geiga#person\"},{\"@id\":\"https:\/\/itsmeandyou.co.uk\/pages\/veronika-matutyte-medical-doctor-healthcare-management-expert-and-advisory-board-member#person\"}]},{\"@type\":\"MedicalClinic\",\"@id\":\"https:\/\/itsmeandyou.co.uk\/#clinic\",\"name\":\"It’s Me \u0026 You Clinic\",\"url\":\"https:\/\/itsmeandyou.co.uk\/\",\"telephone\":\"+447754339478\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"Office 7, ground floor, Siddeley House, 50 Canbury Park Road\",\"addressLocality\":\"Kingston upon Thames\",\"postalCode\":\"KT2 6LX\",\"addressCountry\":\"GB\"}},{\"@type\":\"ItemList\",\"@id\":\"https:\/\/itsmeandyou.co.uk\/collections\/thyroid-blood-tests#products\",\"numberOfItems\":2,\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"Product\",\"name\":\"Thyroid Function Blood Test Home Kit UK\",\"url\":\"https:\/\/itsmeandyou.co.uk\/products\/thyroid-function-test\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Thyroid_Function_Blood_Test_Home_Kit_UK.png?v=1785715640\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"Product\",\"name\":\"Advanced Thyroid Blood Test Home Kit UK\",\"url\":\"https:\/\/itsmeandyou.co.uk\/products\/advanced-thyroid-hormones\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Advanced_Thyroid_Blood_Test_Home_Kit_UK.png?v=1785710771\"}}]},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which thyroid blood test should I choose?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Choose the focused test when the question concerns TSH, T3 and T4. 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High dose biotin supplements may interfere with some thyroid immunoassays and should be recorded before testing.\"}}]}]}\u003c\/script\u003e\u003c\/article\u003e","products":[{"product_id":"thyroid-function-test","title":"Thyroid Function Blood Test Home Kit UK | TSH T3 T4","description":"\u003cstyle\u003e\n.imy-journal{\n  --navy:#17263b;--text:#344054;--muted:#697386;--rule:#d9dfe7;--paper:#fff;\n  --wash:#f7f8fa;--accent:#8f7451;--accent-wash:#f1ece5;\n  --red:#f6e0e0;--red-ink:#8a3737;--amber:#fff0d2;--amber-ink:#7b571b;\n  --green:#e7f1e9;--green-ink:#315d3c;--clay:#f6e5d9;--clay-ink:#8b4e30;\n  --blue:#e8eef5;--blue-ink:#3d5b76;\n  color:var(--text);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.72;\n  margin:0 auto;max-width:1180px;padding-bottom:58px\n}\n.imy-journal *{box-sizing:border-box}\n.imy-journal a{color:var(--navy);text-underline-offset:3px}\n.imy-journal h2,.imy-journal h3,.imy-journal h4{\n  color:var(--navy);font-family:Georgia,\"Times New 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Roman\",serif;font-size:16px;font-weight:500;margin:7px 0 3px}\n.imy-expert3 span{color:var(--muted);display:block;font-size:11px;line-height:1.45}\n.imy-expert3 em{color:var(--accent);display:block;font-size:9px;font-style:normal;font-weight:700;letter-spacing:.1em;margin-top:7px;text-transform:uppercase}\n.imy-clinic3{background:var(--navy);color:#fff;padding:clamp(30px,5vw,54px)}\n.imy-clinic3 h3,.imy-clinic3 h4,.imy-clinic3 a{color:#fff}\n.imy-clinic3 .imy-label{color:#dbc49d}\n.imy-clinic-grid3{display:grid;gap:30px;grid-template-columns:1.35fr .65fr}\n.imy-clinic3 small{color:#c6ced9}\n.imy-source3{columns:2;column-gap:34px;font-size:13px}\n.imy-source3 li{break-inside:avoid;border-top:1px solid var(--rule);padding:10px 0}\n.imy-safety3{background:#f2f4f7;border:1px solid var(--rule);padding:20px}\n.imy-safety3 strong{color:var(--navy)}\n.imy-pull3{border-left:1px solid var(--accent);color:var(--navy);font-family:Georgia,\"Times New Roman\",serif;font-size:clamp(22px,3vw,32px);line-height:1.36;padding:8px 0 8px 28px}\n.imy-journal.age{--accent:#8f7855;--accent-wash:#f2eee5}\n.imy-journal.androgen{--accent:#53677f;--accent-wash:#e9edf2}\n.imy-journal.female{--accent:#8c687a;--accent-wash:#f0e8ec}\n.imy-journal.single-t{--accent:#687489;--accent-wash:#eceff3}\n.imy-journal.heart{--accent:#8c5758;--accent-wash:#f2e8e8}\n.imy-journal.lipid{--accent:#7b6555;--accent-wash:#efeae6}\n.imy-journal.thyroid{--accent:#6f718d;--accent-wash:#ececf2}\n.imy-journal.liver{--accent:#7d6d4d;--accent-wash:#f0ede5}\n.imy-journal.kidney{--accent:#4f7480;--accent-wash:#e8f0f2}\n@media(max-width:930px){\n  .imy-hero3-grid,.imy-clinic-grid3{grid-template-columns:1fr}\n  .imy-map3{grid-template-columns:repeat(3,minmax(0,1fr))}\n  .imy-review3{grid-template-columns:repeat(3,minmax(0,1fr))}\n  .imy-three3,.imy-matrix3{grid-template-columns:repeat(2,minmax(0,1fr))}\n}\n@media(max-width:650px){\n  .imy-two3,.imy-three3,.imy-four3,.imy-map3,.imy-steps3,.imy-matrix3{grid-template-columns:1fr}\n  .imy-review3{grid-template-columns:repeat(2,minmax(0,1fr))}\n  .imy-section3,.imy-hero3{padding-left:2px;padding-right:2px}\n  .imy-result3{grid-template-columns:1fr;gap:8px}\n  .imy-source3{columns:1}\n  .imy-clinic3{padding:26px 20px}\n  .imy-journal h2{font-size:34px}\n}\n\u003c\/style\u003e\n\u003carticle class=\"imy-journal thyroid\"\u003e\u003cheader class=\"imy-hero3\"\u003e\n\u003cdiv class=\"imy-hero3-grid\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-label\"\u003eBlood test home kit UK\u003c\/p\u003e\n\u003ch2\u003eThyroid Function Blood Test Home Kit UK\u003c\/h2\u003e\n\u003cp class=\"imy-lead3\"\u003eA core three marker thyroid function panel measuring the pituitary signal and the two principal free thyroid hormones.\u003c\/p\u003e\n\u003cp class=\"imy-problem3\"\u003e\u003cstrong\u003eWhat this product is designed to clarify:\u003c\/strong\u003e This panel answers a narrower question than the advanced antibody test. It looks at current thyroid function through TSH, free T4 and free T3 without testing TPO or thyroglobulin antibodies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003caside class=\"imy-facts3\"\u003e\n\u003cdiv class=\"imy-fact3\"\u003e\n\u003csmall\u003eReported measures\u003c\/small\u003e\u003cstrong\u003e3\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-fact3\"\u003e\n\u003csmall\u003eCollection\u003c\/small\u003e\u003cstrong\u003eFinger prick capillary blood\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-fact3\"\u003e\n\u003csmall\u003eProduct code\u003c\/small\u003e\u003cstrong\u003eC1BLP02800\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-fact3\"\u003e\n\u003csmall\u003eContent status\u003c\/small\u003e\u003cstrong\u003eFact checked and medically reviewed\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\n\u003c\/header\u003e\u003cnav class=\"imy-nav3\"\u003e\u003ca href=\"#suitability\"\u003eSuitability\u003c\/a\u003e\u003ca href=\"#map\"\u003eTest overview\u003c\/a\u003e\u003ca href=\"#indicators\"\u003eResults\u003c\/a\u003e\u003ca href=\"#review\"\u003eReviewers\u003c\/a\u003e\u003ca href=\"#faq\"\u003eFAQs\u003c\/a\u003e\u003c\/nav\u003e\n\u003csection class=\"imy-section3\" id=\"suitability\"\u003e\n\u003cdiv class=\"imy-two3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-label\"\u003eWhen the product may be useful\u003c\/p\u003e\n\u003ch3\u003eBegin with the reason for testing\u003c\/h3\u003e\n\u003cul class=\"imy-list3\"\u003e\n\u003cli\u003ePersistent tiredness with cold or heat intolerance\u003c\/li\u003e\n\u003cli\u003eUnexplained weight or bowel change\u003c\/li\u003e\n\u003cli\u003ePalpitations, tremor or sweating\u003c\/li\u003e\n\u003cli\u003eAn earlier abnormal TSH result\u003c\/li\u003e\n\u003cli\u003eMonitoring requested by a clinician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-card3 soft\"\u003e\n\u003cspan class=\"tag\"\u003eChoose direct medical assessment instead when\u003c\/span\u003e\n\u003cul class=\"imy-list3\"\u003e\n\u003cli\u003eAssessing thyroid antibodies or autoimmune cause\u003c\/li\u003e\n\u003cli\u003eInvestigating a neck lump or structural thyroid disease\u003c\/li\u003e\n\u003cli\u003eChanging levothyroxine or antithyroid medicine from one result\u003c\/li\u003e\n\u003cli\u003eSevere palpitations, chest pain, collapse or confusion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\" id=\"map\"\u003e\n\u003cp class=\"imy-label\"\u003eThe report at a glance\u003c\/p\u003e\n\u003ch3\u003eWhat is measured and what remains outside the kit\u003c\/h3\u003e\n\u003cdiv class=\"imy-map3\"\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003ePituitary signal\u003c\/b\u003e\u003cspan\u003eTSH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003eMain thyroid hormone\u003c\/b\u003e\u003cspan\u003eFree T4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003eMore active hormone\u003c\/b\u003e\u003cspan\u003eFree T3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003eCommon use\u003c\/b\u003e\u003cspan\u003eFunction pattern\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003eNot included\u003c\/b\u003e\u003cspan\u003eTPO antibodies\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-cell3\"\u003e\n\u003cb\u003eNot included\u003c\/b\u003e\u003cspan\u003eThyroglobulin antibodies\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cp class=\"imy-label\"\u003eA three part feedback loop\u003c\/p\u003e\n\u003ch3\u003eHow TSH, free T4 and free T3 relate\u003c\/h3\u003e\n\u003cdiv class=\"imy-flow3\"\u003e\n\u003cdiv\u003e\n\u003cb\u003ePituitary\u003c\/b\u003e\u003cspan\u003eProduces TSH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eThyroid\u003c\/b\u003e\u003cspan\u003eResponds by producing hormones\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFree T4\u003c\/b\u003e\u003cspan\u003eMain circulating thyroxine\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFree T3\u003c\/b\u003e\u003cspan\u003eMore active hormone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFeedback\u003c\/b\u003e\u003cspan\u003eHormone levels influence TSH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eInterpretation\u003c\/b\u003e\u003cspan\u003eThe combination matters\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cp class=\"imy-label\"\u003eCommon function patterns\u003c\/p\u003e\n\u003ch3\u003eHow TSH changes the meaning of T4 and T3\u003c\/h3\u003e\n\u003cdiv class=\"imy-matrix3\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cstrong\u003eLow free T4\u003c\/strong\u003e\u003cspan\u003eCommonly supports overt primary hypothyroidism.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cstrong\u003eNormal free T4\u003c\/strong\u003e\u003cspan\u003eMay indicate subclinical hypothyroidism and often requires repeat testing.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cstrong\u003eHigh free T4 or free T3\u003c\/strong\u003e\u003cspan\u003eMay support hyperthyroidism or excessive thyroid hormone treatment.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cstrong\u003eNormal free T4 and free T3\u003c\/strong\u003e\u003cspan\u003eMay indicate subclinical hyperthyroidism, medicine effects, pregnancy or illness.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLow or normal\u003c\/b\u003e\u003cstrong\u003eLow free T4\u003c\/strong\u003e\u003cspan\u003eMay suggest central hypothyroidism, severe illness, medicine effects or assay interference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eDiscordant\u003c\/b\u003e\u003cstrong\u003eResults do not fit a usual pattern\u003c\/strong\u003e\u003cspan\u003eConsider medicine timing, biotin, pregnancy, illness, analytical interference or uncommon pituitary conditions.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cdiv class=\"imy-two3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-label\"\u003eCore function panel\u003c\/p\u003e\n\u003ch3\u003eWhat it is designed to show\u003c\/h3\u003e\n\u003cp\u003eThe product focuses on current thyroid function through TSH, free T4 and free T3.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-card3 soft\"\u003e\n\u003cspan class=\"tag\"\u003eNot included\u003c\/span\u003e\n\u003ch4\u003eThyroid antibodies\u003c\/h4\u003e\n\u003cp\u003eTPO and thyroglobulin antibodies are part of the separate advanced thyroid product and are not measured here.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\" id=\"indicators\"\u003e\n\u003cp class=\"imy-label\"\u003eThree marker interpretation\u003c\/p\u003e\n\u003ch3\u003eResult bands and next step guidance\u003c\/h3\u003e\n\u003cdetails class=\"imy-marker3\"\u003e\n\u003csummary\u003eFree triiodothyronine (free T3)\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body3\"\u003e\n\u003cp\u003eFree T3 is the unbound fraction of triiodothyronine in the blood. T3 is the more biologically active thyroid hormone, and much of it is produced outside the thyroid through conversion from T4.\u003c\/p\u003e\n\u003cdiv class=\"imy-band3\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA very low result may occur during severe illness, advanced hypothyroidism, medicine effects or analytical problems.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eMay occur with non thyroidal illness, calorie restriction, medicines, hypothyroid patterns or treatment factors.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eFalls within the laboratory interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eMay occur with hyperthyroidism, T3 predominant thyrotoxicosis or liothyronine treatment.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA markedly raised result with severe symptoms may indicate significant thyrotoxicosis.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA very low result may occur during severe illness, advanced hypothyroidism, medicine effects or analytical problems.\u003c\/p\u003e\n\u003csmall\u003eFollow the laboratory escalation advice and Arrange prompt clinical review.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eMay occur with non thyroidal illness, calorie restriction, medicines, hypothyroid patterns or treatment factors.\u003c\/p\u003e\n\u003csmall\u003eInterpret with TSH, free T4, symptoms and recent illness.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eFalls within the laboratory interval.\u003c\/p\u003e\n\u003csmall\u003eA normal free T3 does not exclude early hypothyroidism, structural thyroid disease or autoimmune thyroid disease.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eMay occur with hyperthyroidism, T3 predominant thyrotoxicosis or liothyronine treatment.\u003c\/p\u003e\n\u003csmall\u003eDiscuss the result with a GP and review TSH, free T4, medicines and symptoms.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA markedly raised result with severe symptoms may indicate significant thyrotoxicosis.\u003c\/p\u003e\n\u003csmall\u003eSeek urgent clinical assessment, especially with a fast heartbeat, chest pain, breathlessness, fever, agitation or confusion.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker3\"\u003e\n\u003csummary\u003eThyroid stimulating hormone (TSH)\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body3\"\u003e\n\u003cp\u003eTSH is produced by the pituitary gland and signals the thyroid to produce thyroid hormones. It is usually the first laboratory marker used when primary thyroid dysfunction is suspected.\u003c\/p\u003e\n\u003cdiv class=\"imy-band3\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA markedly suppressed TSH may occur with overt hyperthyroidism, excessive thyroid hormone treatment, pregnancy, severe illness or medicine effects.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eMay occur with hyperthyroidism, subclinical hyperthyroidism, thyroid hormone treatment, pregnancy, illness, medicines or pituitary dysfunction.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eFalls within the laboratory reference interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eCommonly occurs when the thyroid is underactive, especially when free T4 is low. It may also reflect medicine timing, adherence, recovery from illness or pregnancy requirements.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA markedly raised TSH may indicate significant untreated hypothyroidism or inadequate replacement, although interpretation depends on free T4 and clinical status.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA markedly suppressed TSH may occur with overt hyperthyroidism, excessive thyroid hormone treatment, pregnancy, severe illness or medicine effects.\u003c\/p\u003e\n\u003csmall\u003eArrange prompt clinical review, particularly when free T4 or free T3 is raised.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eMay occur with hyperthyroidism, subclinical hyperthyroidism, thyroid hormone treatment, pregnancy, illness, medicines or pituitary dysfunction.\u003c\/p\u003e\n\u003csmall\u003eReview free T4, free T3, symptoms and treatment timing.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eFalls within the laboratory reference interval.\u003c\/p\u003e\n\u003csmall\u003eA normal TSH reduces the likelihood of primary overt thyroid dysfunction but does not assess nodules, antibodies or every pituitary condition.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eCommonly occurs when the thyroid is underactive, especially when free T4 is low. It may also reflect medicine timing, adherence, recovery from illness or pregnancy requirements.\u003c\/p\u003e\n\u003csmall\u003eDiscuss repeat testing, symptoms, free T4 and treatment with a GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA markedly raised TSH may indicate significant untreated hypothyroidism or inadequate replacement, although interpretation depends on free T4 and clinical status.\u003c\/p\u003e\n\u003csmall\u003eArrange prompt medical review and follow the laboratory escalation advice.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker3\"\u003e\n\u003csummary\u003eFree thyroxine (free T4)\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body3\"\u003e\n\u003cp\u003eFree T4 is the unbound fraction of thyroxine circulating in the blood. T4 is produced mainly by the thyroid and can be converted into the more active hormone T3 in tissues.\u003c\/p\u003e\n\u003cdiv class=\"imy-band3\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA very low result may occur with significant primary hypothyroidism, central hypothyroidism, severe illness or treatment effects.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eWith high TSH, this commonly supports primary hypothyroidism. With low or normal TSH, central hypothyroidism, illness, medicine effects or assay issues may need consideration.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eFalls within the laboratory interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eWith low TSH, this may support hyperthyroidism or excessive thyroid hormone treatment. Discordant patterns can arise from medicines, biotin, pregnancy or assay interference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA markedly raised result with severe symptoms may indicate significant thyrotoxicosis.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA very low result may occur with significant primary hypothyroidism, central hypothyroidism, severe illness or treatment effects.\u003c\/p\u003e\n\u003csmall\u003eArrange prompt clinical review, especially with drowsiness, confusion, hypothermia, severe weakness or breathing problems.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eWith high TSH, this commonly supports primary hypothyroidism. With low or normal TSH, central hypothyroidism, illness, medicine effects or assay issues may need consideration.\u003c\/p\u003e\n\u003csmall\u003eDiscuss the complete pattern with a GP and do not adjust treatment alone.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eFalls within the laboratory interval.\u003c\/p\u003e\n\u003csmall\u003eInterpret with TSH, symptoms, treatment, pregnancy status and previous results.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eWith low TSH, this may support hyperthyroidism or excessive thyroid hormone treatment. Discordant patterns can arise from medicines, biotin, pregnancy or assay interference.\u003c\/p\u003e\n\u003csmall\u003eDiscuss the pattern and medicine timing with a clinician.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result3\"\u003e\n\u003cspan class=\"imy-pill3 critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA markedly raised result with severe symptoms may indicate significant thyrotoxicosis.\u003c\/p\u003e\n\u003csmall\u003eSeek urgent clinical assessment, particularly with chest pain, a very fast heartbeat, severe breathlessness, fever, agitation or confusion.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cdiv class=\"imy-two3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-label\"\u003ePreparation and collection quality\u003c\/p\u003e\n\u003ch3\u003eBefore taking the sample\u003c\/h3\u003e\n\u003cul class=\"imy-list3\"\u003e\n\u003cli\u003eFasting is not usually required unless the kit states otherwise\u003c\/li\u003e\n\u003cli\u003eContinue prescribed thyroid medicine unless advised differently\u003c\/li\u003e\n\u003cli\u003eRecord the product, dose and time of the most recent thyroid dose\u003c\/li\u003e\n\u003cli\u003eRecord high dose biotin and follow laboratory guidance\u003c\/li\u003e\n\u003cli\u003eRecord pregnancy, recent illness and medicines that may affect results\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-card3 soft\"\u003e\n\u003cspan class=\"tag\"\u003eThe supplied instructions take priority\u003c\/span\u003e\n\u003ch4\u003eSmall preparation details can change interpretation\u003c\/h4\u003e\n\u003cp\u003eLaboratory methods, sample stability and collection devices vary. An insufficient, delayed, contaminated or incorrectly labelled sample may not be suitable for analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\" id=\"process\"\u003e\n\u003cp class=\"imy-label\"\u003eFrom selection to secure report\u003c\/p\u003e\n\u003ch3\u003eHow this home testing pathway works\u003c\/h3\u003e\n\u003cdiv class=\"imy-steps3\"\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eRecord medicine timing\u003c\/h4\u003e\n\u003cp\u003eInclude the dose and time of thyroid treatment and any high dose biotin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eCollect the capillary sample\u003c\/h4\u003e\n\u003cp\u003eFollow the required fill volume and labelling instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eReturn within stability\u003c\/h4\u003e\n\u003cp\u003eUse the supplied packaging and dispatch timing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eStart with TSH\u003c\/h4\u003e\n\u003cp\u003eThe pituitary signal is the usual first part of the pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eAdd free T4 and free T3\u003c\/h4\u003e\n\u003cp\u003eThese hormones help describe overt, subclinical and low TSH patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step3\"\u003e\n\u003ch4\u003eEscalate symptoms appropriately\u003c\/h4\u003e\n\u003cp\u003eSevere palpitations, chest pain, collapse or confusion require urgent care.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\" id=\"review\"\u003e\n\u003cp class=\"imy-label\"\u003eFact checked and medically reviewed\u003c\/p\u003e\n\u003ch3\u003eClinical and editorial oversight\u003c\/h3\u003e\n\u003cp\u003eThis page was rebuilt from the supplied laboratory specification and checked against the UK medical, regulatory and professional sources listed below. Medical review is attributed to Veronika Matutyte, Dr Snieguole Geige, Dr Giedre Narkiene. The wider clinic advisory network is shown in compact form.\u003c\/p\u003e\n\u003cdiv class=\"imy-review3\"\u003e\n\u003carticle class=\"imy-expert3\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-laura-geige\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/5W4A9892_9e45e82d-91ac-4b28-8ce0-0ce35f7136c0.jpg?v=1785074197\" alt=\"Portrait of Dr Laura Geige\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Laura Geige\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Director, Senior Practitioner and Skin Expert\u003c\/span\u003e \u003cem\u003eAdvisory contributor\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert3\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-giedre-narkiene\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Giedre_Narkiene.png?v=1785072216\" alt=\"Portrait of Dr Giedre Narkiene\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Giedre Narkiene\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Board Certified Dermatologist and Advisory Board Member\u003c\/span\u003e \u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert3\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/veronika-matutyte-medical-doctor-healthcare-management-expert-and-advisory-board-member\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Veronika_Matutyte_Doctor.jpg?v=1785074986\" alt=\"Portrait of Veronika Matutyte\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eVeronika Matutyte\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Healthcare Management Expert and Advisory Board Member\u003c\/span\u003e \u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert3\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-snieguole-geige\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Snieguole_Geige.jpg?v=1785072214\" alt=\"Portrait of Dr Snieguole Geige\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Snieguole Geige\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eAesthetic Dentist, Medical Doctor and Advisory Board Member\u003c\/span\u003e \u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert3\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-rimas-geiga\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/rimas-geiga.webp?v=1755337643\" alt=\"Portrait of Dr Rimas Geiga\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Rimas Geiga\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Nutritional Sciences Adviser and Advisory Board Member\u003c\/span\u003e \u003cem\u003eAdvisory contributor\u003c\/em\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cdiv class=\"imy-clinic3\"\u003e\n\u003cdiv class=\"imy-clinic-grid3\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-label\"\u003eIt’s Me \u0026amp; You Clinic in Kingston upon Thames\u003c\/p\u003e\n\u003ch3\u003eLocal continuity for private laboratory results\u003c\/h3\u003e\n\u003cp\u003eThe Kingston clinic offers a consultation led setting for thyroid results that need to be considered alongside symptoms, pregnancy status, medicines, recent illness and previous laboratory trends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003eClinic details\u003c\/h4\u003e\n\u003cp\u003eOffice 7, Siddeley House, 50 Canbury Park Road\u003cbr\u003eKingston upon Thames KT2 6LX\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:+447754339478\"\u003e+44 7754 339478\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"mailto:info@itsmeandyou.co.uk\"\u003einfo@itsmeandyou.co.uk\u003c\/a\u003e\u003c\/p\u003e\n\u003csmall\u003eConfirm appointment and travel information before visiting.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3 imy-faq3\" id=\"faq\"\u003e\n\u003cp class=\"imy-label\"\u003eQuestions people ask before ordering\u003c\/p\u003e\n\u003ch3\u003eConcise answers without heavy FAQ cards\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is this different from the advanced thyroid test?\u003c\/summary\u003e\n\u003cp\u003eThis panel measures TSH, free T4 and free T3. It does not include TPO or thyroglobulin antibodies.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs TSH enough on its own?\u003c\/summary\u003e\n\u003cp\u003eTSH is usually the first marker, but free T4 and free T3 can help describe overt, subclinical or low TSH patterns.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to fast?\u003c\/summary\u003e\n\u003cp\u003eFasting is not usually required, but follow the kit instructions and record medicine timing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan biotin interfere with results?\u003c\/summary\u003e\n\u003cp\u003eYes. High dose biotin can affect some thyroid assays. Follow laboratory or clinician guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes a normal panel rule out every thyroid problem?\u003c\/summary\u003e\n\u003cp\u003eNo. It does not assess nodules, antibodies or every pituitary and structural condition.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cp class=\"imy-label\"\u003eUK medical, professional and laboratory references\u003c\/p\u003e\n\u003ch3\u003eSources used for this page\u003c\/h3\u003e\n\u003cul class=\"imy-source3\"\u003e\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section3\"\u003e\n\u003cdiv class=\"imy-safety3\"\u003e\n\u003cstrong\u003eMedical information and urgent care\u003c\/strong\u003e\n\u003cp\u003eHome testing provides laboratory information, not a diagnosis or personal treatment plan. Do not delay urgent care while waiting for a kit or result. Call 999 for a medical emergency. Use NHS 111 or an appropriate clinician for urgent concerns that are not immediately life threatening. Do not start, stop or alter prescribed treatment solely because of a home result.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"It's Me \u0026 You","offers":[{"title":"Default Title","offer_id":54159378841938,"sku":"508-thyroid-function-tes","price":85.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Thyroid_Function_Blood_Test_Home_Kit_UK.png?v=1785715640"},{"product_id":"advanced-thyroid-hormones","title":"Advanced Thyroid Blood Test Home Kit UK","description":"\u003cstyle\u003e\n.imy-lab{\n  --navy:#14243a;--ink:#2c384a;--muted:#6b7280;--line:#dfe3e8;--paper:#fff;--soft:#f7f8fa;\n  --accent:#8c7654;--accent-pale:#f1ece4;--good:#e7f1e9;--good-ink:#315c3b;\n  --low:#fff0d2;--low-ink:#7a5618;--high:#f6e5d8;--high-ink:#8b4d2f;\n  --critical:#f6dfdf;--critical-ink:#8a3434;--info:#e8eef5;--info-ink:#3d5b76;\n  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0}\n.imy-lab.thyroid{--accent:#6d738b;--accent-pale:#ececf2}.imy-lab.crp{--accent:#8a5a58;--accent-pale:#f2e9e8}.imy-lab.vitamins{--accent:#7b7052;--accent-pale:#f1eee5}\n.imy-lab.vitd{--accent:#a0783c;--accent-pale:#f5ecdc}.imy-lab.omega{--accent:#4f7480;--accent-pale:#e8f0f2}.imy-lab.male1{--accent:#536a83;--accent-pale:#e9eef3}\n.imy-lab.male2{--accent:#465b70;--accent-pale:#e6ebef}.imy-lab.psa{--accent:#7c5c67;--accent-pale:#f0e8eb}.imy-lab.iron{--accent:#8a6250;--accent-pale:#f2e9e4}\n@media(max-width:900px){.imy-hero2,.imy-clinic-grid2{grid-template-columns:1fr}.imy-map2{grid-template-columns:repeat(3,minmax(0,1fr))}.imy-review2{grid-template-columns:repeat(3,minmax(0,1fr))}.imy-three2,.imy-decision{grid-template-columns:repeat(2,minmax(0,1fr))}}\n@media(max-width:650px){.imy-two2,.imy-three2,.imy-map2,.imy-steps2,.imy-decision{grid-template-columns:1fr}.imy-review2{grid-template-columns:repeat(2,minmax(0,1fr))}.imy-section2{padding-left:2px;padding-right:2px}.imy-result-row2{grid-template-columns:1fr;gap:8px}.imy-sources2{columns:1}.imy-clinic2{padding:26px 20px}.imy-lab h2{font-size:34px}}\n\u003c\/style\u003e\n\u003carticle class=\"imy-lab thyroid\"\u003e\u003cheader class=\"imy-hero2\"\u003e\n\u003cdiv class=\"imy-hero-main\"\u003e\n\u003cp class=\"imy-kicker\"\u003eBlood test home kit UK\u003c\/p\u003e\n\u003ch2\u003eAdvanced Thyroid Blood Test Home Kit UK\u003c\/h2\u003e\n\u003cp class=\"imy-lead2\"\u003eA five marker thyroid panel that separates present hormone function from autoimmune antibody context.\u003c\/p\u003e\n\u003cdiv class=\"imy-note2\" style=\"margin-top: 24px;\"\u003e\n\u003cstrong\u003eWhat problem this test is intended to address\u003c\/strong\u003e\u003cbr\u003eA basic thyroid result may show how the feedback system is behaving today. The advanced panel adds two antibodies that may support an autoimmune explanation without implying that antibody positivity automatically requires treatment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003caside class=\"imy-hero-side\"\u003e\n\u003cdiv class=\"imy-side-row\"\u003e\n\u003cspan\u003eBiomarkers\u003c\/span\u003e\u003cstrong\u003e5\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-side-row\"\u003e\n\u003cspan\u003eCollection\u003c\/span\u003e\u003cstrong\u003eFinger prick capillary blood\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-side-row\"\u003e\n\u003cspan\u003eProduct code\u003c\/span\u003e\u003cstrong\u003eC1BLP13700\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-side-row\"\u003e\n\u003cspan\u003eEditorial status\u003c\/span\u003e\u003cstrong\u003eFact checked and medically reviewed\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/header\u003e\u003cnav class=\"imy-mini-nav\"\u003e\u003ca href=\"#suitability\"\u003eSuitability\u003c\/a\u003e\u003ca href=\"#map\"\u003eMarkers\u003c\/a\u003e\u003ca href=\"#indicators\"\u003eIndicators\u003c\/a\u003e\u003ca href=\"#review\"\u003eReviewers\u003c\/a\u003e\u003ca href=\"#faq\"\u003eFAQs\u003c\/a\u003e\u003c\/nav\u003e\n\u003csection class=\"imy-section2\" id=\"suitability\"\u003e\n\u003cdiv class=\"imy-two2\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-kicker\"\u003eWhen it may be considered\u003c\/p\u003e\n\u003ch3\u003eStart with symptoms, risk and the reason for testing\u003c\/h3\u003e\n\u003cul class=\"imy-list2\"\u003e\n\u003cli\u003ePersistent tiredness with feeling unusually cold\u003c\/li\u003e\n\u003cli\u003eUnexplained weight change or bowel change\u003c\/li\u003e\n\u003cli\u003ePalpitations, tremor, sweating or heat intolerance\u003c\/li\u003e\n\u003cli\u003eA personal or family history of thyroid or autoimmune disease\u003c\/li\u003e\n\u003cli\u003eAn earlier abnormal TSH, free T4 or free T3 result\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-note2\"\u003e\n\u003cstrong\u003eChoose direct medical assessment instead when\u003c\/strong\u003e\n\u003cul class=\"imy-list2\"\u003e\n\u003cli\u003eA new neck lump or difficulty swallowing\u003c\/li\u003e\n\u003cli\u003eSevere palpitations, chest pain, collapse or confusion\u003c\/li\u003e\n\u003cli\u003eChanging levothyroxine or antithyroid medicine from one home result\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\" id=\"map\"\u003e\n\u003cp class=\"imy-kicker\"\u003eThe report at a glance\u003c\/p\u003e\n\u003ch3\u003eHow the included markers fit together\u003c\/h3\u003e\n\u003cdiv class=\"imy-map2\"\u003e\n\u003cdiv class=\"imy-map-item\"\u003e\n\u003cb\u003ePituitary signal\u003c\/b\u003e\u003cspan\u003eTSH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-item\"\u003e\n\u003cb\u003eMain circulating hormone\u003c\/b\u003e\u003cspan\u003eFree T4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-item\"\u003e\n\u003cb\u003eMore active hormone\u003c\/b\u003e\u003cspan\u003eFree T3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-item\"\u003e\n\u003cb\u003eAutoimmune context\u003c\/b\u003e\u003cspan\u003eTPO antibodies\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-map-item\"\u003e\n\u003cb\u003eAdditional antibody context\u003c\/b\u003e\u003cspan\u003eThyroglobulin antibodies\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\" id=\"model\"\u003e\n\u003cp class=\"imy-kicker\"\u003eThe feedback system\u003c\/p\u003e\n\u003ch3\u003eHormone function and antibodies answer different questions\u003c\/h3\u003e\n\u003cdiv class=\"imy-flow\"\u003e\n\u003cdiv\u003e\n\u003cb\u003ePituitary\u003c\/b\u003e\u003cspan\u003eTSH changes the signal\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eThyroid\u003c\/b\u003e\u003cspan\u003eFree T4 is released\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eTissues\u003c\/b\u003e\u003cspan\u003eFree T3 provides active hormone context\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eImmune system\u003c\/b\u003e\u003cspan\u003eTPO antibodies may be detected\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eAdditional context\u003c\/b\u003e\u003cspan\u003eThyroglobulin antibodies may be detected\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-note2\" style=\"margin-top: 22px;\"\u003e\n\u003cstrong\u003eImportant distinction\u003c\/strong\u003e\u003cbr\u003eA positive antibody result can support autoimmune context, but it does not by itself show whether thyroid hormone production is currently low or high.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\"\u003e\n\u003cp class=\"imy-kicker\"\u003ePattern before label\u003c\/p\u003e\n\u003ch3\u003eHow common thyroid combinations are considered\u003c\/h3\u003e\n\u003cdiv class=\"imy-decision\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHigh TSH with low FT4\u003c\/b\u003e\u003cstrong\u003eA pattern commonly seen with primary hypothyroidism.\u003c\/strong\u003e\u003cspan\u003eMedicines, recent illness and clinical history still matter.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHigh TSH with normal FT4\u003c\/b\u003e\u003cstrong\u003eMay be described as subclinical hypothyroidism when persistent.\u003c\/strong\u003e\u003cspan\u003eA repeat test and TPO antibodies may help guide assessment.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLow TSH with high FT4 or FT3\u003c\/b\u003e\u003cstrong\u003eA pattern commonly seen with hyperthyroidism or excess thyroid hormone replacement.\u003c\/strong\u003e\u003cspan\u003eFurther tests may include TSH receptor antibodies or imaging.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eLow or normal TSH with low FT4\u003c\/b\u003e\u003cstrong\u003eCan occur with severe illness, medicines or less commonly pituitary or hypothalamic disease.\u003c\/strong\u003e\u003cspan\u003eThis discordant pattern needs clinician review and should not be interpreted as normal.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003ePositive antibodies with normal hormones\u003c\/b\u003e\u003cstrong\u003eMay indicate thyroid autoimmunity without current hormone dysfunction.\u003c\/strong\u003e\u003cspan\u003eAntibody positivity alone does not mean medicine is required.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\" id=\"indicators\"\u003e\n\u003cp class=\"imy-kicker\"\u003eFive marker interpretation\u003c\/p\u003e\n\u003ch3\u003eIndicators and what they may mean\u003c\/h3\u003e\n\u003cdetails class=\"imy-marker2\"\u003e\n\u003csummary\u003eThyroid stimulating hormone\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body2\"\u003e\n\u003cp\u003eThyroid stimulating hormone, known as TSH, is produced by the pituitary gland. It signals the thyroid to produce thyroid hormones.\u003c\/p\u003e\n\u003cdiv class=\"imy-band\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA profoundly suppressed result may occur with significant thyroid overactivity, excessive thyroid hormone replacement, recent treatment or less common pituitary or medical factors.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eA lower result can occur with an overactive thyroid, thyroid hormone medicine, pregnancy, recent illness or some medicines.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eA raised result can occur when the thyroid is underactive or the replacement dose is insufficient. Recovery from illness and some medicines can also affect TSH.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA very high result may indicate marked thyroid underactivity, although pituitary causes are much less common than primary thyroid disease.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA profoundly suppressed result may occur with significant thyroid overactivity, excessive thyroid hormone replacement, recent treatment or less common pituitary or medical factors.\u003c\/p\u003e\n\u003csmall\u003eArrange prompt medical review and follow any urgent laboratory instruction.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA lower result can occur with an overactive thyroid, thyroid hormone medicine, pregnancy, recent illness or some medicines.\u003c\/p\u003e\n\u003csmall\u003eDiscuss it with a GP, particularly when free T4 or free T3 is raised.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/p\u003e\n\u003csmall\u003eInterpret it with free T4 and free T3. Seek medical advice if symptoms persist.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA raised result can occur when the thyroid is underactive or the replacement dose is insufficient. Recovery from illness and some medicines can also affect TSH.\u003c\/p\u003e\n\u003csmall\u003eReview the result with your GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA very high result may indicate marked thyroid underactivity, although pituitary causes are much less common than primary thyroid disease.\u003c\/p\u003e\n\u003csmall\u003eArrange prompt medical assessment.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker2\" open=\"\"\u003e\n\u003csummary\u003eFree thyroxine\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body2\"\u003e\n\u003cp\u003eFree thyroxine, known as free T4 or FT4, measures the unbound portion of thyroxine available to tissues. Thyroxine is the principal hormone released by the thyroid.\u003c\/p\u003e\n\u003cdiv class=\"imy-band\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA critically A lower result value can be seen with severe thyroid hormone deficiency, treatment effects or less common pituitary disease.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eA lower result can occur with an underactive thyroid, insufficient replacement, pituitary disease, severe illness or some medicines.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eA raised result can occur with an overactive thyroid, excessive replacement, thyroiditis, pregnancy related changes or assay interference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA critically high result may accompany severe thyrotoxicosis.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA critically A lower result value can be seen with severe thyroid hormone deficiency, treatment effects or less common pituitary disease.\u003c\/p\u003e\n\u003csmall\u003eSeek urgent medical review, especially with extreme drowsiness, confusion, low temperature or severe weakness.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA lower result can occur with an underactive thyroid, insufficient replacement, pituitary disease, severe illness or some medicines.\u003c\/p\u003e\n\u003csmall\u003eReview the result with your GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/p\u003e\n\u003csmall\u003eInterpret it with TSH and symptoms.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA raised result can occur with an overactive thyroid, excessive replacement, thyroiditis, pregnancy related changes or assay interference.\u003c\/p\u003e\n\u003csmall\u003eReview the result with your GP promptly.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA critically high result may accompany severe thyrotoxicosis.\u003c\/p\u003e\n\u003csmall\u003eSeek urgent medical review, particularly with rapid heartbeat, fever, agitation, vomiting or confusion.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker2\"\u003e\n\u003csummary\u003eFree triiodothyronine\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body2\"\u003e\n\u003cp\u003eFree triiodothyronine, known as free T3 or FT3, measures the unbound portion of triiodothyronine available to tissues. T3 is the more biologically active thyroid hormone.\u003c\/p\u003e\n\u003cdiv class=\"imy-band\"\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical low\u003c\/b\u003e\u003cspan\u003eA very low result can occur with severe illness, reduced thyroid hormone production, medicine effects or under replacement.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"low\"\u003e\n\u003cb\u003eLow\u003c\/b\u003e\u003cspan\u003eA lower result can occur with an underactive thyroid, severe illness, calorie restriction or medicine effects.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eA raised result can occur with an overactive thyroid, excessive liothyronine or thyroid hormone replacement, thyroiditis or assay interference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"critical\"\u003e\n\u003cb\u003eCritical high\u003c\/b\u003e\u003cspan\u003eA critically high result may accompany severe thyrotoxicosis.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical low\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA very low result can occur with severe illness, reduced thyroid hormone production, medicine effects or under replacement.\u003c\/p\u003e\n\u003csmall\u003eDiscuss urgently with a clinician when the result is critical or severe symptoms are present.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill low\"\u003eLow\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA lower result can occur with an underactive thyroid, severe illness, calorie restriction or medicine effects.\u003c\/p\u003e\n\u003csmall\u003eInterpret with TSH and FT4 rather than in isolation.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe value sits inside the reporting laboratory’s stated interval.\u003c\/p\u003e\n\u003csmall\u003eConsider it with TSH, FT4 and symptoms.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA raised result can occur with an overactive thyroid, excessive liothyronine or thyroid hormone replacement, thyroiditis or assay interference.\u003c\/p\u003e\n\u003csmall\u003eDiscuss the result promptly with your GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill critical\"\u003eCritical high\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA critically high result may accompany severe thyrotoxicosis.\u003c\/p\u003e\n\u003csmall\u003eSeek urgent medical review if accompanied by rapid heartbeat, fever, agitation, breathlessness, vomiting or confusion.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker2\"\u003e\n\u003csummary\u003eThyroid peroxidase antibodies\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body2\"\u003e\n\u003cp\u003eThyroid peroxidase antibodies, known as TPO antibodies or TPOAb, target an enzyme involved in thyroid hormone production.\u003c\/p\u003e\n\u003cdiv class=\"imy-band\"\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cb\u003eNegative\u003c\/b\u003e\u003cspan\u003eNo raised TPO antibody level was detected using the laboratory cut off.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eThe result is within the laboratory reference interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cb\u003ePositive\u003c\/b\u003e\u003cspan\u003eA positive result supports thyroid autoimmunity and is commonly found in Hashimoto's thyroiditis. It can sometimes occur with Graves' disease or in people whose thyroid function remains normal.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eA raised result indicates thyroid autoantibodies but the number does not directly measure symptom severity or the degree of thyroid underactivity.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill info\"\u003eNegative\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo raised TPO antibody level was detected using the laboratory cut off.\u003c\/p\u003e\n\u003csmall\u003eThis reduces but does not eliminate the possibility of autoimmune thyroid disease.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe result is within the laboratory reference interval.\u003c\/p\u003e\n\u003csmall\u003eInterpret it with TSH, free T4, free T3 and symptoms.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill info\"\u003ePositive\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA positive result supports thyroid autoimmunity and is commonly found in Hashimoto's thyroiditis. It can sometimes occur with Graves' disease or in people whose thyroid function remains normal.\u003c\/p\u003e\n\u003csmall\u003eDiscuss the complete thyroid profile with your GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA raised result indicates thyroid autoantibodies but the number does not directly measure symptom severity or the degree of thyroid underactivity.\u003c\/p\u003e\n\u003csmall\u003eA medical review is appropriate, but a raised antibody result alone is not normally an emergency.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"imy-marker2\"\u003e\n\u003csummary\u003eThyroglobulin antibodies\u003c\/summary\u003e\n\u003cdiv class=\"imy-marker-body2\"\u003e\n\u003cp\u003eThyroglobulin antibodies, known as TgAb, target thyroglobulin, a protein produced within the thyroid and used in thyroid hormone production.\u003c\/p\u003e\n\u003cdiv class=\"imy-band\"\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cb\u003eNegative\u003c\/b\u003e\u003cspan\u003eNo raised thyroglobulin antibody level was detected using the laboratory cut off.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"normal\"\u003e\n\u003cb\u003eNormal\u003c\/b\u003e\u003cspan\u003eThe result is within the laboratory reference interval.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cb\u003ePositive\u003c\/b\u003e\u003cspan\u003eA positive result may support autoimmune thyroid activity, particularly when other thyroid tests or symptoms are abnormal.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"high\"\u003e\n\u003cb\u003eHigh\u003c\/b\u003e\u003cspan\u003eA raised result indicates measurable thyroglobulin antibodies. The concentration does not by itself establish the severity of thyroid disease.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill info\"\u003eNegative\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo raised thyroglobulin antibody level was detected using the laboratory cut off.\u003c\/p\u003e\n\u003csmall\u003eThis does not exclude every autoimmune or non autoimmune thyroid condition.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill normal\"\u003eNormal\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe result is within the laboratory reference interval.\u003c\/p\u003e\n\u003csmall\u003eInterpret it with TPO antibodies and the thyroid hormone profile.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill info\"\u003ePositive\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA positive result may support autoimmune thyroid activity, particularly when other thyroid tests or symptoms are abnormal.\u003c\/p\u003e\n\u003csmall\u003eReview the result with your GP.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-result-row2\"\u003e\n\u003cspan class=\"imy-pill high\"\u003eHigh\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cp\u003eA raised result indicates measurable thyroglobulin antibodies. The concentration does not by itself establish the severity of thyroid disease.\u003c\/p\u003e\n\u003csmall\u003eReview the full pattern with a clinician rather than treating the antibody result alone.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\"\u003e\n\u003cp class=\"imy-kicker\"\u003ePreparation protects the value of the result\u003c\/p\u003e\n\u003ch3\u003eBefore collecting the sample\u003c\/h3\u003e\n\u003cdiv class=\"imy-two2\"\u003e\n\u003cul class=\"imy-list2\"\u003e\n\u003cli\u003eRecord thyroid medicines and dose timing\u003c\/li\u003e\n\u003cli\u003eRecord high dose biotin and follow laboratory guidance\u003c\/li\u003e\n\u003cli\u003eNote pregnancy, recent illness and immune treatments\u003c\/li\u003e\n\u003cli\u003eCollect at a consistent time when repeating the test\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"imy-note2\"\u003e\n\u003cstrong\u003eThe kit instructions take priority\u003c\/strong\u003e\u003cbr\u003eCollection requirements can vary with the laboratory method, sample stability and clinical purpose. An insufficient, contaminated, delayed or incorrectly labelled sample may not be suitable for analysis.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\" id=\"process\"\u003e\n\u003cp class=\"imy-kicker\"\u003eFrom order to secure report\u003c\/p\u003e\n\u003ch3\u003eHow the home testing pathway works\u003c\/h3\u003e\n\u003cdiv class=\"imy-steps2\"\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003eChoose the right question\u003c\/h4\u003e\n\u003cp\u003eReview the exact markers, collection method and limitations before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003eReceive and register\u003c\/h4\u003e\n\u003cp\u003eUse the supplied registration details so the sample is matched to the correct person.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003ePrepare consistently\u003c\/h4\u003e\n\u003cp\u003eFollow timing, fasting, medicine, supplement and activity guidance specific to this test.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003eCollect at home\u003c\/h4\u003e\n\u003cp\u003eCollect the finger prick capillary blood sample exactly as instructed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003eReturn promptly\u003c\/h4\u003e\n\u003cp\u003eUse the supplied return materials within the stated stability window.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"imy-step2\"\u003e\n\u003ch4\u003eView results securely\u003c\/h4\u003e\n\u003cp\u003eThe report is released through the relevant secure digital pathway after quality checks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\" id=\"review\"\u003e\n\u003cp class=\"imy-kicker\"\u003eFact checked and medically reviewed\u003c\/p\u003e\n\u003ch3\u003eClinical and editorial oversight\u003c\/h3\u003e\n\u003cp\u003eThis page was rebuilt from the supplied laboratory specification and checked against the UK medical, regulatory and professional sources listed below. Medical review is attributed to Dr Snieguole Geige, Dr Rimas Geiga, Veronika Matutyte. The wider clinic advisory network is shown in compact form.\u003c\/p\u003e\n\u003cdiv class=\"imy-review2\"\u003e\n\u003carticle class=\"imy-expert2\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-laura-geige\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/5W4A9892_9e45e82d-91ac-4b28-8ce0-0ce35f7136c0.jpg?v=1785074197\" alt=\"Portrait of Dr Laura Geige\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Laura Geige\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Director, Senior Practitioner and Skin Expert\u003c\/span\u003e\u003cem\u003eAdvisory contributor\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert2\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-giedre-narkiene\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Giedre_Narkiene.png?v=1785072216\" alt=\"Portrait of Dr Giedre Narkiene\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Giedre Narkiene\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Board Certified Dermatologist and Advisory Board Member\u003c\/span\u003e\u003cem\u003eAdvisory contributor\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert2\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/veronika-matutyte-medical-doctor-healthcare-management-expert-and-advisory-board-member\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Veronika_Matutyte_Doctor.jpg?v=1785074986\" alt=\"Portrait of Veronika Matutyte\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eVeronika Matutyte\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Healthcare Management Expert and Advisory Board Member\u003c\/span\u003e\u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert2\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-snieguole-geige\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Snieguole_Geige.jpg?v=1785072214\" alt=\"Portrait of Dr Snieguole Geige\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Snieguole Geige\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eAesthetic Dentist, Medical Doctor and Advisory Board Member\u003c\/span\u003e\u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003carticle class=\"imy-expert2\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Person\"\u003e\u003ca href=\"\/pages\/dr-rimas-geiga\" itemprop=\"url\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/rimas-geiga.webp?v=1755337643\" alt=\"Portrait of Dr Rimas Geiga\" width=\"58\" height=\"58\" loading=\"lazy\" itemprop=\"image\"\u003e\u003c\/a\u003e \u003cstrong itemprop=\"name\"\u003eDr Rimas Geiga\u003c\/strong\u003e\u003cspan itemprop=\"jobTitle\"\u003eMedical Doctor, Nutritional Sciences Adviser and Advisory Board Member\u003c\/span\u003e\u003cem\u003ePage reviewer\u003c\/em\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\"\u003e\n\u003cdiv class=\"imy-clinic2\"\u003e\n\u003cdiv class=\"imy-clinic-grid2\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"imy-kicker\"\u003eIt’s Me \u0026amp; You Clinic in Kingston upon Thames\u003c\/p\u003e\n\u003ch3\u003eDoctor led interpretation with local continuity\u003c\/h3\u003e\n\u003cp\u003eThe Kingston clinic offers a consultation led setting for people who want a thyroid report considered alongside symptoms, medicines and medical history. Siddeley House is approximately five minutes from Kingston railway station.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003eFind us\u003c\/h4\u003e\n\u003cp\u003eOffice 7, Siddeley House, 50 Canbury Park Road\u003cbr\u003eKingston upon Thames KT2 6LX\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:+447754339478\"\u003e+44 7754 339478\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"mailto:info@itsmeandyou.co.uk\"\u003einfo@itsmeandyou.co.uk\u003c\/a\u003e\u003c\/p\u003e\n\u003csmall\u003eConfirm appointment and travel information before visiting.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2 imy-faq2\" id=\"faq\"\u003e\n\u003cp class=\"imy-kicker\"\u003eCommon questions\u003c\/p\u003e\n\u003ch3\u003eClear answers without oversized FAQ cards\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a basic and advanced thyroid blood test?\u003c\/summary\u003e\n\u003cp\u003eA basic panel usually focuses on TSH and thyroid hormones. This panel also measures TPO antibodies and thyroglobulin antibodies for autoimmune context.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo positive thyroid antibodies mean I need treatment?\u003c\/summary\u003e\n\u003cp\u003eNo. Antibodies can be present when thyroid hormones remain within range. Treatment decisions depend on hormone function, symptoms and clinical circumstances.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I take levothyroxine before testing?\u003c\/summary\u003e\n\u003cp\u003eFollow the kit and clinician instructions. Record the time of your usual dose because timing can affect interpretation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan biotin affect thyroid blood tests?\u003c\/summary\u003e\n\u003cp\u003eHigh dose biotin can interfere with some laboratory methods. Record supplements and follow the laboratory guidance before collection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes a normal result rule out a thyroid problem?\u003c\/summary\u003e\n\u003cp\u003eNo. Timing, illness, medicines and conditions not measured by this panel may still matter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\"\u003e\n\u003cp class=\"imy-kicker\"\u003eUK medical and laboratory references\u003c\/p\u003e\n\u003ch3\u003eSources used for this page\u003c\/h3\u003e\n\u003cul class=\"imy-sources2\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nice.org.uk\/guidance\/ng145\/chapter\/recommendations\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNICE thyroid disease assessment and management\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nhs.uk\/conditions\/underactive-thyroid-hypothyroidism\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNHS information about underactive thyroid\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.nhs.uk\/conditions\/overactive-thyroid-hyperthyroidism\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eNHS information about overactive thyroid\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.btf-thyroid.org\/thyroid-function-testing\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eBritish Thyroid Foundation thyroid function testing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.btf-thyroid.org\/thyroid-antibodies-explained\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eBritish Thyroid Foundation thyroid antibodies information\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.gov.uk\/drug-device-alerts\/mhra-safety-roundup-may-2025\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eMHRA information about biotin interference\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.ukas.com\/accreditation\/standards\/medical-laboratory-accreditation\/\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eUKAS medical laboratory accreditation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cqc.org.uk\/guidance-regulation\/providers\/registration\/scope-registration\/regulated-activities\/diagnostic-and-screening-procedures\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"\u003eCQC diagnostic and screening services guidance\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"imy-section2\"\u003e\n\u003cdiv class=\"imy-safety2\"\u003e\n\u003cstrong\u003eMedical information and urgent care\u003c\/strong\u003e\n\u003cp\u003eThis page provides general information about selected laboratory markers. It does not provide a diagnosis or personal treatment recommendation. Do not delay care while waiting for a kit or result. Call 999 for a medical emergency. Use NHS 111 or an appropriate clinician for urgent concerns that are not immediately life threatening. Do not change prescribed treatment solely because of a home result.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"It's Me \u0026 You","offers":[{"title":"Default Title","offer_id":54159437398354,"sku":"524-advanced-thyroid-hor","price":119.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2262\/0242\/files\/Advanced_Thyroid_Blood_Test_Home_Kit_UK.png?v=1785710771"}],"url":"https:\/\/itsmeandyou.co.uk\/collections\/home-thyroid-blood-tests-uk-tsh-t3-t4-and-antibodies.oembed","provider":"It's Me \u0026 You","version":"1.0","type":"link"}