Test Details
Mnemonic
FLURZ
Ordering Code
1751040
CPT-4 Code(s)
80346 (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
Plasma: 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
Refrigerated: 14 days
Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry
Reference Range
Desalkylflurazepam: 30 – 150 ng/mL
Performing Laboratory
Warde Medical Laboratory