Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (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 Alcohols (1) Analgesics (2) Anesthetics (1) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (2) Antidepressants (2) Antiepileptics/Antiseizures (1) Antihistamines (1) Antineoplastics (1) Antipsychotics (1) Antithrombotics (2) Benzodiazepines (1) Depressants (1) Diuretics (1) Metals/Elements (1) Muscle Relaxants (1) NPS/Designer Drugs (2) (-) Sedative/Hypnotics (1) Stimulants (1) Test Sub-Category Barbiturates (1) Test Test Name 0500SP Barbital, Serum/Plasma