Gammahydroxybutyric Acid (Urine)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

UGHB

Test Code (Numeric Code)

3164

Laboratory Handling

Laboratory

LabPLUS Toxicology

Sample Stability

Stable for at least a week at 2-8°C

Synonyms

GHB, Fantasy

Turnaround Time

1 week

Performed weekly. Please contact the Toxicology lab for urgent requests.

Specimen Type

  • Urine

Specimen Requirements

Tube/Container Type:

Preferred
  • Specimen Container
Minimum Sample Volume (ml)

2

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Specimen Container
Minimum Sample Volume (ml)

2

Pre-testing Requirements

Urine samples must be collected within 12 hours of ingestion.

Additional Specimen Information

Laboratory Notes:
Urine specimens only accepted. GHB no longer done on serum

Place urine in the Toxicology box

Last updated: 07/08/2026