BENZODIAZEPINES CONFIRMATION

Message

This test is for internal use only.

Test Code

DMBEN

Alias/See Also

DCBEN

CPT Codes
80346

Includes

Alprazolam
Alpha-Hydroxyalprazolam
Oxazepam
Clonazepam
Diazepam
Nordizepam
Temazepam
Lorazepam
Midazolam
Alpha-Hydroxymidazolam
Flurazepam
2-Hydroxyethylflurazepam

Preferred Specimen

1 Yellow round bottom tube is preferred

Minimum Volume

0.5 mL

Other Acceptable Specimens

or Sterile Container
or Alverno Toxi Collection Kit (Occupational Medicine accounts)

Instructions

None

Transport Temperature

Refrigerate or freeze

Specimen Stability

2-8°C up to 7 days

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

Specimens exposed to repeated freeze/thaw cycles will be rejected.

Methodology
LC/MS/MS

Setup Schedule

M, T, W, Th, F

Report Available

Within 24 hours of day tested at the performing laboratory.

Reference Range

**Drug Component & Reporting Limit**
Drug	Value (ng/mL)
Alprazolam	50
Alpha-Hydroxyalprazolam	50
Oxazepam	50
Clonazepam	50
Diazepam	50
Nordizepam	50
Temazepam	50
Lorazepam	60
Midazolam	20
Alpha-Hydroxymidazolam	20
Flurazepam	50
2-Hydroxyethylflurazepam	20

Clinical Significance

Use for quantitative confirmation of a positive drug screen.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: June 9, 2023

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.