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Available Tests

  • Benzodiazepine, Urine (Screen)

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 specimen cup is acceptable.
micro: 1 mL random urine in Yellow Top Urine Tube (No Preservative/Additive)

Room temp/refrigerated ≤5 days

Frozen ≤8 months

Availability 24 hrs/day
Turnaround Time Routine: 2 hours
STAT: 1 hour
Reference Range Not Applicable

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.

Reviewed by Karen Hrischuk on December 13, 2019

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