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) (6) Sample Type Blood (2) Serum or Plasma (2) Urine (2) Test Area Therapeutics (6) Test Category (-) Antihypertensives (6) Test Sub-Category (-) Alpha-2 Adrenergic Agonists (3) Alpha Blockers (2) (-) Calcium Channel Blockers (3) Diuretics (2) Other (19) Your search has returned no tests.