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) (4) Sample Type (-) Blood (4) Serum or Plasma (4) Test Area (-) Therapeutics (4) Test Category Antihypertensives (3) Vasodilators (1) Test Sub-Category Alpha-2 Adrenergic Agonists (2) Alpha-2 Adrenergic Antagonists (1) (-) Alpha Blockers (3) Beta Blockers (9) Calcium Channel Blockers (4) Diuretics (5) Other (5) (-) Thiazides (1) Your search has returned no tests.