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) Sample Type Urine (1) Test Area Exposure (1) Test Category Antiarrhythmics (2) Anticholinergics (3) Antihistamines (5) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (4) Drugs of Abuse (6) (-) Industrial/Environmental Toxins (1) Pesticides/Insecticides (2) Potassium Channel Blockers (2) Test Sub-Category (-) Other (1) Test Test Name 1549U Dichlorobenzidine, Urine