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) (1) Sample Type (-) Blood (1) Serum or Plasma (1) Test Area Therapeutics (1) Test Category (-) Antihypertensives (1) Test Sub-Category Alpha Blockers (1) (-) Beta Blockers (1) Diuretics (1) Toxic Elements (5) Test Test Name 4482B Timolol, Blood