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Test ID FGHSP Gamma-Hydroxybutyric Acid (GHB), Serum/Plasma

Method Name

Liquid Chromatography with Tandem Mass Spectrometry (LC/MS/MS)

Gas Chromatography/Mass Spectrometry (GC/MS) (if appropriate)

Reporting Name

GHB Screen, S/P

Specimen Type

Varies

Specimen Required

Submit only 1 of the following specimens:

 

Serum

Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and send 5 mL of serum refrigerated in a plastic vial.

 

Plasma

Draw blood in a green-top (sodium heparin) tube(s), plasma gel tube is not acceptable. Spin down and send 5 mL of sodium heparin plasma refrigerated in a plastic vial.

Specimen Minimum Volume

1.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Varies Refrigerated (preferred) 7 days
  Frozen  180 days
  Ambient  72 hours

Reference Values

Reference Range: Negative

 

Screening threshold: 5.0 ug/mL

 

Day(s) and Time(s) Performed

Monday through Sunday

Performing Laboratory

Medtox Laboratories, Inc.

CPT Code Information

80307

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FGHSP GHB Screen, S/P 46085-7

 

Result ID Test Result Name Result LOINC Value
Z4223 GHB 46085-7

Testing Algorithm

If the GHB Screen S/P is non-negative, then the Gamma-Hydroxybutyric Acid, CF, SP (FGHA) will be performed at an additional charge.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
FGHA Gamma-Hydroxybutyric Acid, CF, SP No No