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Back to Test Catalogue
Test ID: OXASM S

Oxazepam LC-MS/MS, Serum

Test Overview

Method

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

Result Included

Oxazepam

Aliases/Synonyms

Serax

Specimen

Specimen Type

Gel-separator tubes are not acceptable
Serum

Containers

Collection Containers

Red top (no additive)

Volume

Sample Volume

1 mL

Specimen Comment

Avoid gel-separator tubes.

Collection & Handling

Handling Information

Separate and aliquot within 2 hours. Store and send cold or frozen.

Stability

Ambient Refrigerated Frozen
72 hours 14 days 180 days

Rejection Criteria

Criteria Specification
Specimen Gel tube

Performance & Interpretation

Turnaround Time

12 days

Results

Name
Units
Reference Range
Conversion
  1. Oxazepam
    ng/mL
    Therapeutic: 200 - 1500
    Toxic: > 2000
    nmol/L x 0.287

    Comment

    Therapeutic ranges based on Consensus Guidelines for Therapeutic Drug Monitoring in Neuropsychopharmacology: Update 2017

Referral Location

Canada

Interface & Setup

HL7 Interface Codes

Order Code Result Name Result Codes Units
OXASM S Oxazepam 64773 ng/mL

Test Version

Last Updated

2023-01-13