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) Serum or Plasma (2) (-) Tissue (1) Urine (1) Test Area Therapeutics (3) Test Category (-) Antihypertensives (3) Test Sub-Category (-) Beta Blockers (3) Calcium Channel Blockers (1) Test Test Name 0012B Acebutolol, Blood 0483B Atenolol, Blood 0483TI Atenolol, Tissue