Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (3) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (6) (-) Fluid (2) Serum or Plasma (9) Tissue (1) Urine (1) Test Area Therapeutics (2) Test Category Antidepressants (1) (-) Antiepileptics/Antiseizures (2) Antihypertensives (1) Hallucinogens (1) Test Sub-Category Barbiturates (1) Other (1) Test Test Name 3743FL Phenytoin, Fluid 3900FL Primidone, Phenobarbital and PEMA, Fluid