Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (9) (-) Fluid (2) Serum or Plasma (12) Tissue (1) Urine (4) Test Area Therapeutics (2) Test Category Analgesics (1) Antidepressants (1) (-) Antiepileptics/Antiseizures (2) Antihypertensives (1) Drugs of Abuse (1) Hallucinogens (2) Metals/Elements (2) Therapeutics (3) Test Sub-Category Barbiturates (1) Other (1) Test Test Name 3743FL Phenytoin, Fluid 3900FL Primidone, Phenobarbital and PEMA, Fluid