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