The T₃ resin uptake test is used to measure:

Question

Quizplus · Accepted Answer

Serum total T₄ (and T₃) are clinically meaningful only if the functional levels of thyroid hormone-binding proteins in blood are known.This is achieved by use of the T₃ resin uptake test.This test does not measure a specific analyte per se but measures the functional state (ability to bind hormone) of the hormone-binding proteins, specifically TBG.The test gets its name for one of the reagents utilized in the assay, radioactive labeled T₃.

The T₃ Resin Uptake Test Is Used to Measure