Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Sample Type Blood (1) Serum or Plasma (1) (-) Urine (2) Test Area Drugs of Abuse (1) Therapeutics (1) Test Category Analgesics (1) Antihistamines (1) Depressants (1) Metals/Elements (1) (-) Sedative/Hypnotics (2) Volatiles (2) Test Sub-Category Barbiturates (2) Test Test Name 0500U Barbital, Urine 0512U Barbiturates Screen, Urine