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 (-) Sedative/Hypnotics (2) Test Sub-Category (-) Barbiturates (2) Test Test Name 3410U Pentobarbital, Urine 8633U Phenobarbital, Urine