Triiodothyronine, Reverse 
Mnemonic T3REV
CPT 84482
Test Code 3502460
Synonyms T3 Reverse, Reverse Triiodothyronine
Test Includes  
Specimen Serum
Volume 2.0 mL
Container SST or Red Top Tube
Special Instructions  
Specimen Prep Centrifuge* within 2 hours of collection. Transfer serum to Lavender Screw Cap Plastic Transport Tube.
Storage Frozen
Transport Temp Frozen
Stability Rm Temp 24 hours
Stability Refrig 1 week
Stability Frozen 3 months
Methodology Quantitative Liquid chromatography/tandem mass spectrometry
Rejection Criteria   
Reference Value 1-17 years: Not established; > or = 18 years: 9.0 - 27.0 ng/dL 
Performed/TAT Monday - Sunday   2-6 days    
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