Back to Test Catalogue

Gamma-Hydroxybutyrate, Serum/Plasma

Test ID: GHB S

Test

Aliases/Synonyms

GHB; Scoop; Liquid Ecstacy

Method

GC-FID

Report Includes

Gamma-Hydroxybutyrate (GHB)

Specimens

Serum; Plasma (Heparin); Plasma (Citrate); Plasma (EDTA)

Clinical Utility

Gamma Hydroxybutyrate (GHB) is a central nervous system depressant, which was first synthesized in the 1960’s as an anesthetic drug. It was marketed in health food stores as an anabolic steroid alternative in the 1980’s as it was thought to act as a “fat burner” and growth hormone promoter. It is now seen in the “Rave” nightclub scene, where it is used with criminal intent as a “date rape” drug or knock out drops. GHB comes either as a powder or liquid and can be easily bought on the streets by many names including: Grievous Bodily Harm, Scoop, Liquid Ecstacy or Cherry Meth. GHB is a relatively fast acting depressant. Within about 15 minutes of administration, drowsiness, dizziness, euphoria, nausea, visual disturbances and unconsciousness may ensue. The duration of action is about 3 hours. Peak urine GHB concentrations are observed within about 4 hours after an oral dose, but the drug is undetectable in urine by 12 hours.

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

19-Nov-2019

Specimen

Specimens

Serum; Plasma (Heparin); Plasma (Citrate); Plasma (EDTA)

Sample Volume

2.0 mL

Stability

Refrigerated 2 days
Frozen >2 days

Test Version

19-Nov-2019

Performance / Interpretation

Method

GC-FID

Turnaround Time

2 days

Results

Name Units Reference Range Conversion Factor
Gamma-Hydroxybutyrate (GHB) mg/L
  • Not detected
Not detected: <50 mg/L
Detected: >50 mg/L

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

19-Nov-2019

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
GHB S 63104Gamma-Hydroxybutyrate (GHB),b None

Test Version

19-Nov-2019