Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Urine (1) Test Area Exposure (1) Test Category Antiarrhythmics (2) Anticholinergics (3) Antiepileptics/Antiseizures (2) Antigout Agents (3) Antihistamines (14) Antihypertensives (2) Antipsychotics (5) Cholinesterase Inhibitors (3) Diuretics (5) Immunosuppressants (1) (-) Industrial/Environmental Toxins (1) Muscle Relaxants (7) Other (1) Sedative/Hypnotics (4) Test Sub-Category (-) Other (1) Test Test Name 1355U o-Toluidine, Urine