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 (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (2) Urine (1) Test Area Drugs of Abuse (1) (-) Therapeutics (2) Test Category Anesthetics (1) Sedative/Hypnotics (1) Test Sub-Category (-) Barbiturates (2) Benzodiazepines (1) Opiates/Opioids (15) Other (5) Phenothiazines (2) Tricyclic (6) Test Test Name 8633B Phenobarbital, Blood 8636B Thiopental and Metabolite, Blood