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) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Sample Type Blood (1) Serum or Plasma (2) (-) Urine (2) Test Area Therapeutics (2) Test Category Antidepressants (1) Antihistamines (1) Antimicrobials (1) Antipsychotics (1) Biomarkers (2) Pesticides/Insecticides (1) (-) Sedative/Hypnotics (2) Volatiles (2) Test Sub-Category Barbiturates (2) Test Test Name 0450U Aprobarbital, Urine 0500U Barbital, Urine