Test Details
Mnemonic
TRAZO
Ordering Code
1750580
CPT-4 Code(s)
80338 (G0480)
Specimen Information
Collect
Red-top
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw-capped plastic vial.
Alternate Specimen
Lavender EDTA, gray sodium fluoride, potassium oxalate
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated
Rejection Criteria
SST
Stability
Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 14 days
Refrigerated: 14 days
Frozen: 14 days
Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry
Reference Range
Therapeutic: 500 - 1600 ng/mL
Toxic: >5000 ng/mL
Toxic: >5000 ng/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes