Benzodiazepine, Urine (Screen)

Yellow Top Urine Tube

Specimen Type

Test ID LAB367
CPT Code(s) 80307
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Routine: 30
STAT: 888
Specimen Routine:

10 mL Random Urine in Yellow Top Urine Tube (No Preservative/Additive); See important comments

10 mL Random urine in Sterile collection cup is acceptable if refrigerated.

Micro: 4 mL Random Urine in Yellow Top Urine Tube (No Preservative/Additive)
Stability Room Temperature: 7 days
Refrigerated: 30 days
Frozen: 12 months
Availability 24 hrs/day
Turnaround Time Routine: 2 hours
STAT: 1 hour
Reference Range Cutoff Value: <200 ng/mL

Benzodiazepine metabolites may be detected up to 72 hours after ingestion depending upon the specific benzodiazepine. The urine benzodiazepine screening test detects the presence of the benzodiazepine/diazepam at a concentration of 200 ng/mL or greater. Other benzodiazepine are detected, call laboratory for information regarding a specific benzodiazepine.

This method is unable to distinguish between specific benzodiazepines and should be used for screening. Confirmation testing should be considered for positive screens; (See Benzodiazepines, Confirmation.) Note: These results are for medical purposes only.

For additional information related to drug screening, refer to the Urine Toxicology Chart. Screen components may vary by lab location.

Reviewed by Christopher Parker on January 11, 2022

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514