Alprazolam (Xanax), Serum [4741X]

Test Code
21592

Includes
Collect at trough concentration

Preferred Specimen
2 mL serum collected in a red-top tube (no gel)

Minimum Volume
1 mL

Other Acceptable Specimens
Serum collected in a no additive (royal blue-top) tube • Plasma collected in a EDTA (lavender-top), sodium heparin (green-top) tube

Instructions



Transport Temperature
Room temperature

Specimen Stability
Room temperature: 5 days
Refrigerated: 14 days
Frozen: 1 year

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum Separator Tubes (SST)

Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

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

Reference Range
10-50 ng/mL

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



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.