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Test Name:
Gamma-Hydroxybutyric Acid Screen with Confirmation/Quantitation if Indicated, Serum or Plasma
- SBMF No:
44346 - Performance Lab Name:
NMS Labs - Test Mnemonic:
GHB SP - ABN:
Not required - CPT Code:
80100
If indicated, add 82542
Medicare: G0431
If indicated, add 82542 - LOINC Code:
28041-2 - Ref Lab Test No:
9326SP (ARUP# 0091193) - Also Known As:
GHB, Gamma-Hydroxybutyrate - Spec Type:
Serum or plasma - Spec Container:
Red top (serum), Lavender top (EDTA), Green top (heparin), or Gray top (fluoride/oxalate) tube **
** NMS Labs has no experimental or literature-based data regarding the choice of specific specimen collection containers for this test
- Pref Vol:
5.0 mL - Spec Collect:
Do not use gel-barrier tubes for specimen collection
Routine venipuncture - Spec Process:
Serum sample tubes, clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum or plasma to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
7 days room temperature (20-30°C)
7 days refrigerated (2-8°C)
7 days frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Specimen collected in light blue top (sodium citrate) or pale yellow top (ACD) tube
Specimen collected in polymer gel separation tube (SST or PST) - Methodology:
Gas Chromatogrpahy/Mass Spectrometry (GC/MS) - Use:
Exclusion Screen - Clinical Significance:
Hypnotic, Sedative - Reference Range:
By report - Additional Test Info:
This test is referred through ARUP Laboratories - Day Run:
Varies - Time Reported:
Varies - Test Type:
TOX-TDM
