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 (6) 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 (12) Calcium Channel Blockers (5) (-) Diuretics (5) Other (5) Thiazides (1) Your search has returned no tests.