Zolpidem, Serum or Plasma

CPT: 80368
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Test Details

Synonyms

  • Ambien®
  • Edluar®
  • Intermezzo®

Use

Therapeutic drug management

Methodology

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Reference Interval

Expected hypnotic zolpidem concentrations in patients taking recommended daily dosages: up to 250 ng/mL.

Specimen Requirements

Specimen

Serum or plasma

Volume

3 mL

Minimum Volume

0.6 mL

Container

Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended.

Collection

Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.

Storage Instructions

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen. Specimen is stable for three days at room temperature, for three days refrigerated, and for two weeks frozen.

Causes for Rejection

Gel-barrier tubes

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
808135 Zolpidem (Ambien), Serum 6953-4 808136 Zolpidem ng/mL 6953-4
808135 Zolpidem (Ambien), Serum 6953-4 808138 Zolpidem (Ambien), Serum N/A

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The LOINC® codes are copyright © 1994-2017, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf