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 (2) Test Area Exposure (2) Test Category Antiarrhythmics (2) Anticholinergics (3) Antiepileptics/Antiseizures (2) Antigout Agents (3) Antihistamines (14) Antipsychotics (5) Cholinesterase Inhibitors (3) Depressants (2) Diuretics (5) Drugs of Abuse (1) Gases (3) Immunosuppressants (1) (-) Industrial/Environmental Toxins (2) Muscle Relaxants (11) Other (1) Sedative/Hypnotics (4) Volatiles (1) Test Sub-Category (-) Other (2) Test Test Name 1355U o-Toluidine, Urine 1549U Dichlorobenzidine, Urine