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) (9) Sample Type Blood (4) Serum or Plasma (4) Urine (1) Test Area (-) Therapeutics (9) Test Category Antihypertensives (9) Test Sub-Category Alpha-2 Adrenergic Agonists (6) (-) Alpha-2 Adrenergic Antagonists (3) (-) Alpha Blockers (6) Beta Blockers (28) Calcium Channel Blockers (12) Diuretics (13) Other (13) Thiazides (2) Vasodilators (1) Your search has returned no tests.