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) (2) Sample Type (-) Blood (2) Serum or Plasma (2) Urine (2) Test Area Therapeutics (2) Test Category Analgesics (1) Antihistamines (1) (-) Sedative/Hypnotics (2) Therapeutics (2) Volatiles (1) Test Sub-Category Barbiturates (2) Test Test Name 3410B Pentobarbital, Blood 8633B Phenobarbital, Blood