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Gamma-Hydroxybutyric Acid Screen, Serum/Plasma
Test Code37654
Includes
If the screen is positive, Gamma-Hydroxybutyric Acid Confirmation, Serum/Plasma testing will be added automatically at no additional charge.
Preferred Specimen
Red Top
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in an: EDTA (lavender-top) tube or EDTA (pink-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic screw capped vial using approved guidelines
Transport Temperature
Refrigerated (cold packs)
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: 4-8 days (If Positive: 6-13 days)
Reference Range
See Laboratory Report
Clinical Significance
Forensic analysis; Exclusion screen
