Test directory: T3, Reverse

Ordering Code 4766
Test Name T3, Reverse
Alias RT3
Reverse T3
Triiodothyronine, Reverse
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red), Plasma in EDTA, K2 (Lavender), Plasma in Sodium Heparin (Green)
Optimum Volume 1 mL
Collection Instructions Allow blood to clot at room temperature for 30 minutes
Transport Requirements Oahu: Ambient
Airline: Frozen
Specimen Stability Ambient: 7 Days
Refrigerated: 7 Days
Frozen: 30 Days
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Liquid Chromatography/Tandem Mass Spectrometry
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
T3, Reverse, Serum ALL See report.