{"product_id":"free-thyroxine-ft4","title":"Free Thyroxine (FT4)","description":"\u003cp\u003e\u003cspan\u003eThis assay is used for the quantitative determination of free thyroxine (fT4) in human serum and plasma. Thyroxine (T4) is the main hormone produced by the thyroid gland and plays a crucial role in regulating metabolism, cardiovascular function, growth, bone health, and nervous system development. In circulation, only about 0.03% of T4 exists in its free, biologically active form, while the rest is bound to proteins such as thyroxine-binding globulin (TBG), pre-albumin, and albumin. Measuring free T4 provides a more accurate assessment of thyroid function, independent of fluctuations in binding proteins, making it useful in diagnosing thyroid disorders and monitoring thyrosuppressive therapy. The assay uses a homogeneous chemiluminescence immunoassay, and samples should be stored at 2–8 °C if tested within 24 hours, or frozen at -20 °C for longer storage.\u003c\/span\u003e\u003c\/p\u003e","brand":"Enlight","offers":[{"title":"24 TESTS","offer_id":52728719409451,"sku":null,"price":3204.0,"currency_code":"INR","in_stock":false},{"title":"48 TESTS","offer_id":52728719442219,"sku":null,"price":5832.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1827\/3323\/files\/FT4-01.jpg?v=1772701774","url":"https:\/\/shop.encorebiomedicals.com\/products\/free-thyroxine-ft4","provider":"Encore Biomedicals ","version":"1.0","type":"link"}