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HelpTest ID FGHSP Gamma-Hydroxybutyric Acid (GHB), Serum/Plasma
Specimen Required
Submit only 1 of the following specimens:
Serum
Specimen Type: Serum
Container/Tube: red-top tube(s)
Specimen Volume: 5 mL
Collection Instructions: 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.
Min Vol: 1.2 mL
Plasma
Specimen Type: Plasma
Container/Tube: green-top (sodium heparin)
Specimen Volume: 5 mL
Collection Instructions: 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.
Min Vol: 1.2 mL
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| FGHA | Gamma-Hydroxybutyric Acid, CF, SP | No | No |
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.
Method Name
Liquid Chromatography with Tandem Mass Spectrometry (LC/MS/MS)
Gas Chromatography/Mass Spectrometry (GC/MS) (if appropriate)
Reporting Name
GHB Screen, S/PSpecimen Type
VariesSpecimen 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: 10.0 ug/mL
Day(s) Performed
Monday, Wednesday, and Friday
Report Available
7 to 9 daysPerforming Laboratory
Medtox Laboratories, Inc.Test Classification
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.CPT Code Information
80307