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 (1) Test Area Therapeutics (1) Test Category Analgesics (3) Anesthetics (1) Antianxiety (1) Anticholinergics (3) Antidepressants (2) Antiepileptics/Antiseizures (1) Antihistamines (1) Antihypertensives (1) Antimicrobials (2) Antipsychotics (1) Benzodiazepines (1) Biomarkers (2) Diuretics (1) NPS/Designer Drugs (6) Pesticides/Insecticides (2) Potassium Channel Blockers (1) Psychoactives (1) (-) Sedative/Hypnotics (1) Stimulants (3) Volatiles (3) Test Sub-Category Barbiturates (1) Test Test Name 0500U Barbital, Urine