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) (1) Sample Type Blood (3) Serum or Plasma (3) (-) Urine (2) Test Area Therapeutics (2) Test Category (-) Antiepileptics/Antiseizures (2) Sedative/Hypnotics (1) Solvents (1) Test Sub-Category Other (2) Test Test Name 2000U Ethosuximide, Urine 9171U Ethosuximide Screen, Urine