Drug Toxicology Monitoring Benzodiazepines, Quantitative, Urine

Test Code

GCBNZ

Quest Code

91541

CPT Codes
80346 (HCPCS: G0480)

Includes

Alphahydroxyalprazolam, Alphahydroxytriazolam, Aminoclonazepam, Hydroethylflurazepam, Lorazepam, Nordiazepam, Oxazepam, Temazepam

Preferred Specimen

3 mL urine

Minimum Volume

2 mL

Other Acceptable Specimens

Urine collected in urine collection container

Transport Container

Clinical drug test transport vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Preserved samples

Methodology
Mass Spectrometry (MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Days and nights Monday-sunday

Report Available

3 days

Reference Range

	Cutoff
Alphahydroxyalprazolam	<25 ng/mL
Alphahydroxymidazolam	<50 ng/mL
Alphahydroxytriazolam	<50 ng/mL
Aminoclonazepam	<25 ng/mL
Hydroethylflurazepam	<50 ng/mL
Lorazepam	<50 ng/mL
Nordiazepam	<50 ng/mL
Oxazepam	<50 ng/mL
Temazepam	<50 ng/mL

Performing Laboratory

Quest Diagnostics LLC

200 Forest Street, 3rd Floor, Suite B

Marlborough, MA 01752-3023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.