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 (2) (-) Serum or Plasma (2) Urine (1) Test Area (-) Therapeutics (2) Test Category Antihypertensives (2) Test Sub-Category (-) Alpha Blockers (1) Anticoagulants (2) Benzodiazepines (1) (-) Calcium Channel Blockers (1) Cannabinoids (1) Cardiac Glycosides (1) NSAIDs (1) Opiates/Opioids (1) Other (10) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Thiazides (1) Test Test Name 1640SP Diltiazem, Serum/Plasma 1815SP Doxazosin, Serum/Plasma