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Gamma-Hydroxybutyric Acid Screen, Serum/Plasma
Test Code37654
CPT Codes
80307
Includes
If the screen is positive, Gamma-Hydroxybutyric Acid confirmation, Serum/Plasma testing will be added automatically at no additional charge.
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), or (pink-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic, screw-capped vial, using approved guidelines.
Transport Container
Plastic screw-cap vial
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) tubes • Polymer gel separation tube (SST or PST) • ACD acid citrate dextrose (yellow-top) tube
Methodology
Gas Chromatography/Mass Spectrometry (GC/MS)
FDA Status
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.
Setup Schedule
Set up: As needed; Report available: 4 days (after set up)
Reference Range
See Laboratory Report
Clinical Significance
Forensic Analysis; Exclusion Screen
Performing Laboratory
National Medical Services
200 Welsh Rd,
Horsham, PA 19044