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 (4) (-) Fluid (1) Serum or Plasma (3) Urine (4) Test Area Therapeutics (1) Test Category Antihypertensives (1) Test Sub-Category Barbiturates (1) Benzodiazepines (1) (-) Beta Blockers (1) Macrominerals (1) NSAIDs (1) Opiates/Opioids (3) Other (4) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Toxic Elements (2) Test Test Name 3043FL Metoprolol, Fluid