Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) (-) Fluid (1) Serum or Plasma (2) Urine (2) Test Area Drugs of Abuse (1) Test Category (-) Depressants (1) Drugs of Abuse (1) Sedative/Hypnotics (1) Therapeutics (3) Test Sub-Category Other (1) Test Test Name 9326FL Gamma-Hydroxybutyric Acid Screen, Fluid