Endocrine, Diabetes & Metabolism

Free T4

Also called: FT4

What does Free T4 mean?

The unbound circulating form of thyroxine, one of the main thyroid hormones.

U.S. National Library of Medicine
Understanding Medical Words ↗ National Cancer Institute
Cancer Terms Dictionary ↗ CDC
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This is a plain-language Healthway explanation, not an individual diagnosis. The meaning of a term can change with the clinical context in which it appears.