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 Antidepressants (6) (-) Antihypertensives (2) Test Sub-Category (-) Alpha Blockers (2) Calcium Channel Blockers (3) Test Test Name 1815B Doxazosin, Blood 1815SP Doxazosin, Serum/Plasma