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) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Sample Type Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area (-) Therapeutics (1) Test Category Analgesics (2) Anesthetics (1) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (2) Antidepressants (2) Antiepileptics/Antiseizures (1) Antihistamines (1) Antineoplastics (1) Antipsychotics (1) Depressants (1) Diuretics (1) Muscle Relaxants (1) (-) Sedative/Hypnotics (1) Stimulants (1) Test Sub-Category Barbiturates (1) Test Test Name 0500SP Barbital, Serum/Plasma