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 (2) (-) Fluid (1) Serum or Plasma (2) (-) Urine (1) Test Area (-) Therapeutics (2) Test Category Analgesics (10) Antacids (1) Antianxiety (1) Antidepressants (3) Antidiabetics (2) Antiepileptics/Antiseizures (1) (-) Antihypertensives (2) Antipsychotics (1) Immunosuppressants (1) Muscle Relaxants (2) Sedative/Hypnotics (4) Stimulants (2) Test Sub-Category Beta Blockers (2) Test Test Name 3043FL Metoprolol, Fluid 3043U Metoprolol, Urine