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 (2) (-) Fluid (1) Serum or Plasma (2) Urine (1) Test Area Drugs of Abuse (1) Test Category (-) Depressants (1) Diagnostic Aids (1) Drugs of Abuse (3) Drugs of Abuse, Therapeutics (2) Sedative/Hypnotics (1) Therapeutics (3) Volatiles (1) Test Sub-Category Alcohols (2) Benzodiazepines (2) (-) Other (1) Test Test Name 9326FL Gamma-Hydroxybutyric Acid Screen, Fluid