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) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (6) Sample Type Blood (1) Serum or Plasma (1) Urine (1) Test Area (-) Therapeutics (3) Test Category Sedative/Hypnotics (3) Test Sub-Category (-) Barbiturates (3) Other (4) Test Test Name 0500B Barbital, Blood 0500SP Barbital, Serum/Plasma 0500U Barbital, Urine