Gamma-Hydroxybutyric Acid
Label Mnemonic: GHB
Epic code: LAB3199
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mailout Laboratory
6240-8 RCP
356-8593
Specimen(s):
Random Urine
Collection Medium:
Urine (Random)-BD Vacutainer®, no additive yellow top
Minimum:
Preferred Minimum: 5.0 mL random urine
Absolute Minimum: 2.8 mL random urine
Turn Around Time:
5-12 days upon receipt at reference laboratory
Reference Range:
By report.
Comments:
This test is useful for general screening to assess drug abuse. Positive drug screen results are confirmed.

If Gamma-Hydroxybutyric Acid Screen is detected, then confirmation testing will be added at no additional charge.
Methodology:
Qualitative Gas Chromatography-Mass Spectrometry/Quantitative Gas Chromatography-Mass Spectrometry (HPLC-MS/MS)
CPT Code:
80307; if positive add 80375
If screen is positive, automatic reflex to confirmation/quantitation. Additional charge applies.