{"id":9740,"date":"2023-05-24T15:42:27","date_gmt":"2023-05-24T15:42:27","guid":{"rendered":"https:\/\/introlab.net\/?page_id=9740"},"modified":"2026-01-21T19:19:22","modified_gmt":"2026-01-21T19:19:22","slug":"t4-total-thyroxine","status":"publish","type":"page","link":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/","title":{"rendered":"T4 (total thyroxine)"},"content":{"rendered":"<p>The T4 (total thyroxine) analysis is an important method for assessing thyroid gland function. <em>Measuring T4 levels in the blood allows for the assessment of this hormone, which is responsible for regulating metabolism and other vital processes in the body.<\/em> The blood analysis laboratory in Belgrade, <a href=\"https:\/\/staging-introlab.dev-digitaldot.com\/en\/\">IntroLab<\/a>, provides precise and reliable T4 analysis results, along with expert interpretation. Scheduling is straightforward, and since the cost of thyroid gland tests is affordable, this test is accessible to anyone who wants to assess their hormonal health.<!--more--><\/p>\n<h2>What is the T4 hormone?<\/h2>\n<p>Thyroid hormones, T3 and T4, are essential for normal growth, development, and regulation of metabolism. A deficiency or excess of these hormones can have serious consequences for the body. <strong>T4 is the primary hormone produced in the thyroid gland<\/strong>, while T3 is the biologically most active form. Moreover, T4 concentrations are usually three to four times higher than T3 concentrations in the blood.<\/p>\n<h2>Why might a T4 analysis be indicated?<\/h2>\n<p>Analysis of thyroid hormones, namely TSH, T3\/fT3, and measuring antibodies (anti-TPO, anti-Tg, antibodies to TSH receptors) is often indicated along with thyroxine analysis, especially in cases of suspected autoimmune diseases. Additionally, measuring T4 levels is recommended for individuals with <em>symptoms of hyperthyroidism or hypothyroidism, an enlarged thyroid gland or nodules, and for individuals with a diagnosed thyroid disorder to monitor therapy<\/em>. It is also routinely determined in every newborn in postnatal screening.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The T4 (total thyroxine) analysis is an important method for assessing thyroid gland function. Measuring T4 levels in the blood allows for the assessment of this hormone, which is responsible for regulating metabolism and other vital processes in the body. The blood analysis laboratory in Belgrade, IntroLab, provides precise and reliable T4 analysis results, along [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-biohemiska.php","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[203],"tags":[],"class_list":["post-9740","page","type-page","status-publish","hentry","category-immunohemistry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>T4 (total thyroxine) | IntroLab Belgrade<\/title>\n<meta name=\"description\" content=\"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"T4 (total thyroxine) | IntroLab Belgrade\" \/>\n<meta property=\"og:description\" content=\"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/\" \/>\n<meta property=\"og:site_name\" content=\"Introlab Laboratorija Beograd\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-21T19:19:22+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/t4-total-thyroxine\\\/\",\"url\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/t4-total-thyroxine\\\/\",\"name\":\"T4 (total thyroxine) | IntroLab Belgrade\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#website\"},\"datePublished\":\"2023-05-24T15:42:27+00:00\",\"dateModified\":\"2026-01-21T19:19:22+00:00\",\"description\":\"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/t4-total-thyroxine\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/t4-total-thyroxine\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/t4-total-thyroxine\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"T4 (total thyroxine)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/\",\"name\":\"Introlab Laboratorija Beograd\",\"description\":\"Dijagnosti\u010dke Analize Krvi\",\"publisher\":{\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#organization\",\"name\":\"Introlab Laboratorija Beograd\",\"url\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/introlablogo-ai.svg\",\"contentUrl\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/introlablogo-ai.svg\",\"caption\":\"Introlab Laboratorija Beograd\"},\"image\":{\"@id\":\"https:\\\/\\\/staging-introlab.dev-digitaldot.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"T4 (total thyroxine) | IntroLab Belgrade","description":"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_US","og_type":"article","og_title":"T4 (total thyroxine) | IntroLab Belgrade","og_description":"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!","og_url":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/","og_site_name":"Introlab Laboratorija Beograd","article_modified_time":"2026-01-21T19:19:22+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/","url":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/","name":"T4 (total thyroxine) | IntroLab Belgrade","isPartOf":{"@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#website"},"datePublished":"2023-05-24T15:42:27+00:00","dateModified":"2026-01-21T19:19:22+00:00","description":"Why is the T4 analysis important? Find out today, and then schedule this analysis on the website of IntroLab Belgrade!","breadcrumb":{"@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/t4-total-thyroxine\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/"},{"@type":"ListItem","position":2,"name":"T4 (total thyroxine)"}]},{"@type":"WebSite","@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#website","url":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/","name":"Introlab Laboratorija Beograd","description":"Dijagnosti\u010dke Analize Krvi","publisher":{"@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#organization","name":"Introlab Laboratorija Beograd","url":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/staging-introlab.dev-digitaldot.com\/wp-content\/uploads\/2023\/05\/introlablogo-ai.svg","contentUrl":"https:\/\/staging-introlab.dev-digitaldot.com\/wp-content\/uploads\/2023\/05\/introlablogo-ai.svg","caption":"Introlab Laboratorija Beograd"},"image":{"@id":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/#\/schema\/logo\/image\/"}}]}},"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/pages\/9740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/comments?post=9740"}],"version-history":[{"count":1,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/pages\/9740\/revisions"}],"predecessor-version":[{"id":17689,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/pages\/9740\/revisions\/17689"}],"wp:attachment":[{"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/media?parent=9740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/categories?post=9740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staging-introlab.dev-digitaldot.com\/en\/wp-json\/wp\/v2\/tags?post=9740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}