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 Analgesics (16) (-) Anesthetics (1) Antianxiety (2) Antidepressants (7) Antipsychotics (2) Appetite Suppressants (1) (-) Sedative/Hypnotics (1) Stimulants (1) Test Sub-Category Barbiturates (2) Test Test Name 8633B Phenobarbital, Blood 8636B Thiopental and Metabolite, Blood