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 (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Antiarrhythmics (2) Test Sub-Category Alkaloids (2) Anticoagulants (1) Aromatics (1) Barbiturates (11) Benzodiazepines (6) (-) Beta Blockers (2) Designer Benzodiazepines (2) Opiates/Opioids (8) Other (29) Small Molecule (5) Solvents (2) Sympathomimetic Amines (2) Synthetic Cathinone (2) Toxic Elements (10) Test Test Name 3227B Beta-Blockers Panel, Blood 3227U Beta-Blockers Panel, Urine