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) (3) Sample Type (-) Blood (2) Fluid (1) Serum or Plasma (2) (-) Tissue (1) Urine (1) Test Area Therapeutics (3) Test Category (-) Antihypertensives (3) Test Sub-Category Alpha-2 Adrenergic Antagonists (1) Alpha Blockers (1) (-) Beta Blockers (3) Calcium Channel Blockers (2) Diuretics (1) Test Test Name 4000B Propranolol, Blood 4000TI Propranolol, Tissue 4482B Timolol, Blood