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HelpTest Code FGHSP Gamma-Hydroxybutyric Acid (GHB), Serum/Plasma
Reporting Name
GHB Screen, S/PPerforming Laboratory
Medtox Laboratories, Inc.Specimen Type
VariesSpecimen 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
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.
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| 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
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 |
Analytic Time
5 daysReject Due To
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Method Name
Liquid Chromatography with Tandem Mass Spectrometry (LC/MS/MS)
Gas Chromatography/Mass Spectrometry (GC/MS) (if appropriate)
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| FGHA | Gamma-Hydroxybutyric Acid, CF, SP | No | No |