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) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (3) Fluid (1) Serum or Plasma (8) Tissue (1) (-) Urine (2) Test Area Exposure (1) Therapeutics (1) Test Category Antiepileptics/Antiseizures (1) Volatiles (1) Test Sub-Category (-) Other (2) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Test Test Name 4757U Valproic Acid, Urine 4778U Vinyl Chloride Metabolite, Urine