Hormones secreted by the thyroid include thyroxine (T4) and triiodothyronine (T3). The levels of thyroid hormone in the blood circulatory system often reflect the function of thyroid. Determination of total content of T3 in serum, is important for testing thyroid function and usually as the first ch...

Hormones secreted by the thyroid include thyroxine (T4) and triiodothyronine (T3). The levels of thyroid hormone in the blood circulatory system often reflect the function of thyroid. Determination of total content of T4 in serum, is the most commonly indicator to judge the function of thyroid and u...

After the release of triiodothyroxine (FT3) into the blood, most of it was combined with plasma protein, and only about 0.3% of T3 was in free state (FT3) in the blood. FT3 enters the target cell to play a role, and it is one of the most accurate indicators of thyroid function. Determination of the ...

After the release of Thyroxine (FT4) into the blood, most of it was combined with plasma protein, and only about 0.03% of T4 was in free state (FT4) in the blood. FT4 enters the target cell to play a role, and it is one of the most accurate indicators of thyroid function. Determination of the conten...

The secretion of thyroid-stimulating hormone (hTSH) is regulated by the negative feedback of the concentrations of T3 and T4 in serum. TSH acts mainly on the thyroid gland, which increases synthesis of thyroid and secretion of thyroid hormones T3 and T4. Determination of the content of TSH in serum,...

Thyroglobulin antibody (TG antibody) is an autoantibody. In some thyroid diseases, TG spilled into the blood because thyroid pathological damage and induced to produce the corresponding autoantibodies. Determination of content of TG antibody in serum has great significance for the diagnosis and diff...

Determination of the content of thyroid peroxidase antibody (TPO-Ab) in serum has great significance for the diagnosis and identification of hashimoto's thyroiditis, Graves disease, primary myxedema and other autoimmune thyroid disease.