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) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Antiarrhythmics (2) Anticholinergics (3) Antihistamines (5) (-) Antihypertensives (2) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (4) Drugs of Abuse (2) Potassium Channel Blockers (2) Test Sub-Category (-) Alpha Blockers (2) Calcium Channel Blockers (3) Your search has returned no tests.