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Gamma-Hydroxybutyric Acid Screen, Serum/Plasma
Test Code37654
CPT Codes
80307
Includes
If positive, TC 36084 Gamma-Hydroxybutyric Acid Confirmation, Serum/Plasma will be added at an additional charge (CPT code: 80368)
Preferred Specimen
5 mL serum collected in a red-top tube (no gel)
Minimum Volume
2.4 mL
Other Acceptable Specimens
Plasma collected in an EDTA (lavender-top), EDTA (pink-top) or sodium heparin (green-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic screw capped vial using approved guidelines
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 30 days
Refrigerated: 30 days
Frozen: 60 days
Refrigerated: 30 days
Frozen: 60 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Sodium citrate (light blue-top) tube • ACD (yellow-top) tube • Serum separator tube (SST) • Polymer gel separation tube (PST)
Methodology
Gas Chromatography/Mass Spectrometry (GC/MS)
Setup Schedule
Set up: Daily; Report available: 4 days (after set-up)
Clinical Significance
Forensic Analysis; Exclusion Screen
