Free Thyroxine 4 (FT4)

Thyroxine is an iodine-containing hormone C15H11I4NO4 that is an amino acid produced by the thyroid gland as a product of the cleavage of thyroglobulin, increases metabolic rate, and is used to treat thyroid disorders

Source: Merriam-Webster

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How do I test for this biomarker?

For your convenience we've linked the panels that contain this biomarker below!