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 (5) (-) Fluid (1) Serum or Plasma (9) Tissue (1) Urine (2) Test Area Therapeutics (1) Test Category Antiepileptics/Antiseizures (1) Test Sub-Category Calcium Channel Blockers (1) (-) Other (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Test Test Name 4757FL Valproic Acid, Fluid