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 (2) Serum or Plasma (2) Test Area Therapeutics (4) Test Category (-) Antihypertensives (4) Test Sub-Category Alpha Blockers (2) Beta Blockers (10) (-) Calcium Channel Blockers (2) (-) Diuretics (2) Other (5) Your search has returned no tests.