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) Enzymatic Assay (EZA) (2) Gas Chromatography (GC) (1) Sample Type Urine (1) Test Area Exposure (1) Test Category Antiepileptics/Antiseizures (2) Antipsychotics (4) Industrial/Environmental Toxins (1) (-) Other (1) Test Sub-Category NSAIDs (2) Opiates/Opioids (26) (-) Other (1) Test Test Name 1352U o-Cresol, Urine