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