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) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (3) Serum or Plasma (3) (-) Urine (2) Test Area Therapeutics (2) Test Category Acids (1) Alcohols (2) Analgesics (1) Anesthetics (1) Antianxiety (1) Antidepressants (3) (-) Antiepileptics/Antiseizures (2) Hallucinogens (2) Herbicides (1) Sedative/Hypnotics (1) Solvents (4) Volatiles (3) Test Sub-Category Barbiturates (1) Other (1) Test Test Name 2000U Ethosuximide, Urine 2860U Metharbital and Metabolite, Urine