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) (1) Sample Type Blood (19) (-) Fluid (1) Serum or Plasma (18) Tissue (2) Urine (9) Test Area Drugs of Abuse (2) Postmortem (3) (-) Therapeutics (1) Test Category Antiepileptics/Antiseizures (1) Test Sub-Category Barbiturates (1) Beta Blockers (1) Opiates/Opioids (1) (-) Other (1) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Test Test Name 3743FL Phenytoin, Fluid