ARUP's Laboratory Test Directory

Gamma-Hydroxybutyric Acid, Serum or Plasma - Screen with Reflex to Confirmation/Quantitation : 0091193

Mnemonic: GHB SP

Methodology: Qualitative Gas Chromatography-Mass Spectrometry/Quantitative Gas Chromatography-Mass Spectrometry
Performed: Varies
Reported: 3-10 days
Specimen Required: Collect: Plain red, lavender (EDTA), or pink (K2EDTA). Also acceptable: Gray (sodium fluoride/potassium oxalate) or green (sodium heparin).

Specimen Preparation: Separate serum or plasma from cells within 2 hours. Transfer 6 mL serum to ARUP Standard Transport Tubes. (Min: 2.4 mL)

Storage/Transport Temperature: Refrigerated. Also acceptable: Room temperature or frozen.

Unacceptable Conditions: Separator tubes or citrate buffered tubes.

Stability (collection to initiation of testing): Ambient: 1 week; Refrigerated: 1 week; Frozen: 1 week
Reference Interval:
By report
CPT Code(s): 80100; if positive add 82542
Cross References: GHB (Gamma-Hydroxybutyric Acid, Serum or Plasma - Screen with Reflex to Confirmation/Quantitation), Xyrem (Gamma-Hydroxybutyric Acid, Serum or Plasma - Screen with Reflex to Confirmation/Quantitation)