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) (-) Urine (1) Test Area Therapeutics (1) Test Category (-) Antiarrhythmics (1) Antihypertensives (2) Test Sub-Category (-) Beta Blockers (1) NSAIDs (3) Opiates/Opioids (4) Other (2) Test Test Name 3227U Beta-Blockers Panel, Urine