Ordering Recommendation

Use to obtain quantitative results or to follow up a presumptive result. For general screening, the preferred test is Zolpidem Urine with Reflex to Quantitation (2012300).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Random urine.

Specimen Preparation

Transfer 0.5 mL urine with no additives or preservatives to an ARUP standard transport tube. (Min: 0.3 mL)

Storage/Transport Temperature

Room temperature.

Unacceptable Conditions

Specimens exposed to repeated freeze/thaw cycles.

Remarks
Stability

Ambient: 1 week; Refrigerated: 1 month; Frozen: 3 years

Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Sun-Sat

Reported

1-5 days

Reference Interval

Interpretive Data

Methodology: Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Drugs covered:
zolpidem. 
Positive cutoff:
20 ng/mL

For medical purposes only; not valid for forensic use.

The absence of expected drug may indicate noncompliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

N/A

CPT Codes

80368 (Alt code: G0480)

Components

Component Test Code* Component Chart Name LOINC
2007850 Zolpidem, Urn, Quant 72770-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Ambien
Zolpidem, Urine, Quantitative