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 (4) Fluid (1) Serum or Plasma (7) (-) Tissue (1) Urine (1) Test Area Therapeutics (1) Test Category Anesthetics (1) (-) Antiepileptics/Antiseizures (1) Antihistamines (1) Antipsychotics (1) Pesticides/Insecticides (1) Stimulants (1) Volatiles (1) Test Sub-Category (-) Other (1) Test Test Name 3743TI Phenytoin, Tissue