Serum T4
•Last Updated: October 13, 2024
T4 (thyroxine) is one of the two hormone produced by the thyroid gland (along with T3; triiodothyronine). Both act on virtually every part of the body and their deficiency can have wide-reaching effects. "Serum T4" simply refers to the amount of T4 measured in the blood.
Last Updated:October 13, 2024
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