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) (16) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) Spectrophotometry (SP) (1) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Therapeutics (5) Test Category Antiarrhythmics (2) Anticholinergics (3) (-) Antihistamines (5) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (4) Drugs of Abuse (2) Potassium Channel Blockers (2) Test Sub-Category (-) Other (5) Your search has returned no tests.