Days Set Up
Daily
Analytic Time

7 - 9 days

Soft Order Code
MMLR

Test Updated:

Synonyms

Gamma Hydroxybutyric Acid
Gamma OH-butyrate
Date Rape Drug
Drug Screen, Gamma Hydroxy Butyrate
GHB
Gamma-Hydroxybutyric Acid (GHB)

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All specimens should be accompanied by a requisition.

Submitting Specimens

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Test FAQ

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Test Overview

Test Methodology

Screen: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS), Confirmation: Gas Chromatography/Mass Spectrometry (GC/MS)

Test Usage

Detection of gamma hydroxy butyrate in urine.

Reference Range

Negative (screening threshold 5 mcg/mL).

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect random urine specimen and refrigerate.

Normal Volume
10 mL urine
Minimum Volume
1.5 mL urine

Billing Information

CPT Code
80307
Pro Fee Code
 
LOINC
29868-7

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.

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