Explore the Ideal tests for your Thyroid. Thyroid Profile

Pituitary and thyroid gland are both part of the endocrine system and responsible for production of thyroid hormones (TH). Pituitary gland releases thyroid stimulating hormones (TSH) which stimulates thyroid gland to secrete TH namely Thyroxine (T4) and Triiodothyronine (T3) into the blood stream which then regulates basal metabolic rate (BMR) and adaptive thermogenesis along with other functions. Both, excessive or poor secretion of thyroid hormones lead to thyroid associated disorders manifesting fatigue, poor concentration, sudden weight loss or weight gain, etc. Thyroid profile involves set of blood tests which screens for thyroid related conditions.

TSH Test

TSH is released by pituitary gland (present at the base of the brain) when it gets stimulated by thyrotropin releasing hormone (TRH). TSH triggers the thyroid gland to release T3 and T4. This test measures the amount of TSH present in the blood. High level of TSH indicates hypothyroidism (underactive thyroid gland) and low level indicates hyperthyroidism (overactive thyroid gland).

T4 & FT4 Test

Thyroid gland predominantly produces T4 along with T3 in smaller amounts. Majority of T4 is bound to protein in blood while only small amount of T4 freely circulates in blood. Bound T4 gets released from the protein along with free T4 (FT4) to meet the body ’s demand. T4 controls metabolis, it is significantly less active than T3 however, majority of T4 gets converted by deiodinase enzyme in liver into T3. T4 and FT4 test helps to evaluate thyroid function. Low levels of T4 can indicate hypothyroidism and its high level is associated with hyperthyroidism. Combining TSH test along with FT4 test helps in determining thyroid functioning.

T3 & FT3 Test

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Thyroid Profile Testing is done for the qualitative and quantitative analysis of thyroid using sophisticated and automated technology of Chemiluminescence Immunoassay (C.L.I.A), at highly affordable rates.