Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) (-) Urine (1) Test Area Drugs of Abuse (1) Test Category Anesthetics (1) Antianxiety (1) Anticholinergics (1) Antidepressants (2) Antiepileptics/Antiseizures (1) Antipsychotics (1) Antitussives/Cough Suppressants (2) (-) Depressants (1) Diagnostic Aids (1) Diuretics (1) Hallucinogens (1) Sedative/Hypnotics (2) Stimulants (3) Test Sub-Category Benzodiazepines (2) Opiates/Opioids (2) (-) Other (1) Synthetic Cannabinoids (1) Test Test Name 9326U Gamma-Hydroxybutyric Acid Screen, Urine