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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) (-) Fluid (2) Serum or Plasma (2) Urine (2) Test Area Diagnostic Aids (1) Therapeutics (1) Test Category Anesthetics (1) Antidepressants (1) (-) Biomarkers (1) Depressants (2) Electrolytes (1) (-) Muscle Relaxants (1) Sedative/Hypnotics (1) Test Sub-Category Other (1) Small Molecule (1) Test Test Name 0420FL Betahydroxybutyric Acid, Fluid 2111FL Baclofen, Fluid