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) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type (-) Blood (2) Fluid (3) Serum or Plasma (2) Tissue (1) Urine (3) Test Area (-) Diagnostic Aids (1) (-) Drugs of Abuse (1) Therapeutics (2) Test Category Biomarkers (1) Sedative/Hypnotics (1) Test Sub-Category Barbiturates (1) Small Molecule (1) Test Test Name 0420B Betahydroxybutyric Acid, Blood 8620B Barbiturates Panel, Blood