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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (2) (-) Serum or Plasma (2) Urine (2) Test Area (-) Therapeutics (2) Test Category Sedative/Hypnotics (2) Test Sub-Category (-) Barbiturates (2) Opiates/Opioids (1) Other (1) Test Test Name 3410SP Pentobarbital, Serum/Plasma 8633SP Phenobarbital, Serum/Plasma