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HelpGamma-hydroxybutyrate, Quantitative
Clinical System Name
Miscellaneous
Synonyms
Gamma Hydroxybutyrate
GHB
Sample Requirements
Specimen: Urine
Container(s): Leak-Proof Container
Preferred Vol: 10 mL
Minimum Vol:
Note: Collect random urine sample. Send to Lab immediately after collection.
Processing Instructions
Reject due to:
Spin: N
Aliquot: Y
Temp: - 20 C
Storage location: Put 10 mL urine in a Nalgene bottle affixed with a large computer label in the CPA freezer send-outs rack.
Off-site collection:
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Random urine | Room temp | 3 d |
| Refrigerated | Y | |
| Frozen | Y |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | Daily | 1 - 7 d |
Performing Laboratory
Medtox Laboratories
Department
Department:
Medtox Laboratories
402 West County Road D
St Paul, MN 55112
Phone Number: (800) 832-3244
CPT Codes
82491
82542 if positive
Methodology
Method: GC - FID
Analytical Volume: 2 mL
Limitations:
Reference Range
| ug/mL | |
| Range | Negative |
| Reporting Limit | 5.0 |
Send Out Instructions
| Reference Test Name: | Gamma-Hydroxybutyric Acid, Urine |
| Reference Test Number: | 1365 |
| Instructions: | Send out Mon - Thurs overnight via FedEx using a Medtox requisition. Medtox accepts Saturday deliveries. Ship at ambient temperature. |