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) (3) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (2) Fluid (1) (-) Serum or Plasma (1) Urine (2) Test Area (-) Drugs of Abuse (1) Exposure (1) Therapeutics (22) Test Category Depressants (1) Test Sub-Category Other (1) Test Test Name 9326SP Gamma-Hydroxybutyric Acid Screen, Serum/Plasma