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HelpTest Code LAB12689 Diazepam (Valium®)
Department
SEND OUTS
Reference Lab Test Number
DIAZE
Refer To
Warde Medical LaboratoryPrimary Collection Container
Red (No Gel)
Transport
Serum refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Centrifuge, separate and send 1.0 mL serum in a screw-capped plastic vial.
Stability
Ambient: 48 hours
Refrigerated: 14 days
Frozen: 14 days
Minimum Testing Volume
0.2 mL
Reference Range
Diazepam: 100–1000 ng/mL
Nordiazepam: 100–1000 ng/mL
Toxic: Sum >5000 ng/mL
Methodology
Liquid Chromatography/Tandem Mass Spectrometry
Performed
Monday, Wednesday, and Friday
Reported
3-4 days
CPT Codes
G0480
Unacceptable Conditions
SST
Additional Information
Includes Diazepam and Nordiazepam (metabolite).