Flurazepam and Desalkylflurazepam, Serum or Plasma

CPT: 80346
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Test Details

Synonyms

  • Dalmane®

Use

Therapeutic drug management

Methodology

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

Reference Interval

Flurazepam: 0−30 ng/mL; desalkylflurazepam: 30−150 ng/mL; combined total: 30−180 ng/mL

Specimen Requirements

Specimen

Serum or plasma, frozen

Volume

2 mL

Minimum Volume

0.5 mL

Container

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

Patient Preparation

Trough levels are most reproducible.

Collection

Serum or plasma should be separated from cells immediately. Transfer separated serum or plasma to a plastic transport tube and freeze immediately.

Storage Instructions

Freeze immediately; ship on dry ice.

Causes for Rejection

Gel-barrier tubes; sample not received frozen

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
808455 Flurazepam (Dalmane) 790417 Flurazepam ng/mL 46979-1
808455 Flurazepam (Dalmane) 810914 Desalkylflurazepam ng/mL 46980-9
808455 Flurazepam (Dalmane) 790419 Flurazepam +Desalkylflurazepam ng/mL 73826-0
808455 Flurazepam (Dalmane) 808459 Flurazepam (Dalmane) 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