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 (3) Fluid (2) Serum or Plasma (3) Tissue (1) (-) Urine (2) Test Area Drugs of Abuse (1) (-) Therapeutics (2) Test Category Antiepileptics/Antiseizures (12) (-) Sedative/Hypnotics (2) Test Sub-Category Barbiturates (1) Benzodiazepines (1) Test Test Name 1270U Clonazepam as Metabolite, Urine 8633U Phenobarbital, Urine