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) (5) Sample Type Blood (5) (-) Serum or Plasma (5) Urine (2) Test Area (-) Therapeutics (5) Test Category Antihypertensives (5) Test Sub-Category (-) Alpha-2 Adrenergic Agonists (2) Alpha-2 Adrenergic Antagonists (1) (-) Alpha Blockers (3) Beta Blockers (9) Calcium Channel Blockers (4) Diuretics (6) Other (7) Thiazides (1) Vasodilators (1) Your search has returned no tests.