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 (4) Fluid (1) Serum or Plasma (4) (-) Tissue (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Analgesics (1) (-) Antiarrhythmics (1) Anticholinergics (1) Antidepressants (2) Antihistamines (2) (-) Antihypertensives (1) Antitussives/Cough Suppressants (5) Diuretics (1) NPS/Designer Drugs (3) Potassium Channel Blockers (1) Test Sub-Category Calcium Channel Blockers (1) Cardiac Glycosides (1) Test Test Name 1615TI Digoxin, Tissue 1640U Diltiazem, Urine