Specimen Requirements

Title

T3, REVERSE

Specimen Requirement

Methodology

Stability

Room Temp or Refrigerated: 7 days

Reference Range

By Report*

Turnaround

4-6 days -- Performed Sun-Fri

Clinical Use

Reverse T3 measurement may be useful in evaluating the euthyroid sick patient with low T3 concentrations. Also useful in evaluating thyroid function and metabolism. Not to be confused with tri-iodothyronine.

Test Code

RT3W