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Gamma-Hydroxybutyric Acid (GHB)

Order Name GHB Serum
Test Number: 3604705
Revision Date 11/15/2018
Test Name Methodology LOINC Code
Gamma-Hydroxybutyric Acid (GHB)
Gas Chromatography/Mass Spectrometry (GC/MS) 28041-2 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 4 mL (2.4 mL) Serum No Additive Clot (Red Top, No-Gel, Plastic) Refrigerated
Alternate 1 4 mL (2.4 mL) Plasma EDTA (Lavender Top) Refrigerated
Alternate 2 4 mL (2.4 mL) Plasma Sodium Floride (Gray) Refrigerated
Instructions Separate serum or plasma from cells within 2 hours
Transfer 4 mL (Min: 2.4 mL) serum or Plasma to a Standard Transport Tube.
Storage/Transport Temperature: Refrigerated. Also acceptable: Room temperature or frozen.
Unacceptable Conditions: Separator tubes or citrate buffered tubes. Stability: Ambient: 1 week; Refrigerated: 1 week; Frozen: 2 months
Testing Schedule Tuesday, Thursday 
Expected TAT 4-11 days from setup  
Clinical Use If positive, reflex confirmation will be added.
Reflex Order Code: (5613651.GHB Confirmation | Reflex Result Code: (5613651.GHB Conf
Notes Reference Lab: ARUP
Test Code: 91193
Click Here to view information on the ARUP website.
CPT Code(s) 80307 (Reflex 80375)
Lab Section Reference Lab