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Medical Definition of T3 uptake test
1. A test of thyroid function in which triiodothyronine (T3) is added to a patient's serum in vitro to measure the relative affinities of serum proteins and of an added competitive substance for T3; higher T3 uptakes are associated with hyperthyroidism. Synonym: T3 uptake test. (05 Mar 2000)
Lexicographical Neighbors of T3 Uptake Test
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