Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (5) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) Sample Type Blood (5) Fluid (1) Serum or Plasma (5) Tissue (1) Urine (2) Test Area (-) Therapeutics (14) Test Category Antihypertensives (12) Vasodilators (2) 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.