Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (10) Sample Type Blood (2) Serum or Plasma (3) Tissue (1) Urine (4) Test Area (-) Therapeutics (10) Test Category Antiarrhythmics (2) Anticholinergics (3) Antihistamines (5) (-) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (3) Potassium Channel Blockers (2) Test Sub-Category (-) Other (10) Your search has returned no tests.