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) Test Area Therapeutics (2) Test Category Acids (2) Antidepressants (2) Antiepileptics/Antiseizures (6) Antihistamines (2) Antineoplastics (2) Antipsychotics (6) Antirheumatics (2) Biomarkers (2) Bronchodilators (2) Cholinesterase Inhibitors (2) (-) Diuretics (2) Immunosuppressants (5) Muscle Relaxants (2) Other (1) Solvents (3) Terpenes (2) Vasodilators (2) Volatiles (3) Test Sub-Category (-) Other (2) Test Test Name 4525B Torsemide, Blood 4525SP Torsemide, Serum/Plasma