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) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category (-) Antihypertensives (2) Test Sub-Category Alpha-2 Adrenergic Agonists (3) (-) Alpha Blockers (2) Antiplatelet Agents (2) Benzodiazepines (3) Calcium Channel Blockers (3) Diuretics (2) Other (4) Selective Serotonin Reuptake Inhibitors (SSRI) (3) Test Test Name 1815B Doxazosin, Blood 1815SP Doxazosin, Serum/Plasma