Gamma-Hydroxybutyric Acid Screen, Urine

Test Code

GHBU

Quest Code

37653

CPT Codes
80307

Includes

If the screen is positive, confirmatory testing will be added automatically at no additional charge:
• If the GHB screen needs confirmation it will reflex to Gamma-Hydroxybutyric Acid Confirmation, Urine (CPT code(s): 82542)
• If the Creatinine value is Less than or equal to 300 mg/L or equal to or greater than 3000 mg/L, then Specific Gravity Confirmation, Urine will reflex (CPT code(s): 82570)

Preferred Specimen

2 mL random urine collected in a plastic container (preservative free)

Minimum Volume

1 mL

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 21 days

Methodology
Gas Chromatography/Mass Spectrometry (GC/MS)

Setup Schedule

Set up: As needed; Report available: 5 days (If positive: 9 days)

Reference Range

See Laboratory Report

Performing Laboratory
NMS Labs
200 Welsh Rd.
Horsham, PA 19044

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.