T3, Reverse, LC/MS/MS

Specimen Required
Draw blood in a Red-top. Centrifuge, separate serum from cells within 2 hours of collection, and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: Lavender

Rejection Criteria
SST, Grossly lipemic or hemolyzed samples

Methodology
Liquid Chromatography/Tandem Mass Spectrometry

Stability
Serum: Room Temperature: Unaccepatable; Refrigerated: 7 days; Frozen: 3 months

Reference Range
>=18 years: 9.0-27.0 ng/dL

Performed
Monday, Wednesday, Friday

Turnaround Time4 days
Test CodeRT3
CPT-4 Code (s)
84482
LOINC Codes
3052-8

Warde
Medical
Laboratory