Test Directory

Test Code
CZOLP
Test Name
Zolpidem, Quantitative, Urine
CPT Codes
AMA 80368; CMS G0480
Expected Turnaround Time
1 - 5 days
Clinical Utility

Useful in determining the use or abuse of Zolpidem.

Testing includes identification and quantitation of:

  • Carboxyzolpidem (Zolpidem metabolite)
Specimen and Container Info

Preferred Specimen Type: Urine 

Preferred Collection Container: Plastic Urine Container (Preservative Free) 

Desired Specimen Volume: 10 mL 

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Room Temperature

  7 Days

Refrigerated

  7 Days

Causes for Rejection

Urine specimens received in tubes containing preservatives will be rejected.

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

Analyte

Cutoff Concentration (ng/mL)

Carboxyzolpidem

25

Performing Location
Roble Road Core Laboratory
Alternate Names
  • Ambien
  • Edluar
  • Intermezzo
  • Zolpimist
Testing Schedule
Routine, daily