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 (3) Analgesics (12) Anesthetics (4) Antidepressants (11) Antidiabetics (2) Antiepileptics/Antiseizures (9) Antihistamines (2) Antihypertensives (6) Antimicrobials (3) Antineoplastics (2) Antiparkinsons (3) Antipsychotics (13) Antirheumatics (2) Bronchodilators (4) Cholinesterase Inhibitors (2) Depressants (2) (-) Diuretics (2) Immunosuppressants (5) Metals/Elements (23) Muscle Relaxants (2) Other (1) Sedative/Hypnotics (6) Solvents (1) Stimulants (3) Sympathomimetic Amines (3) Terpenes (3) Vasodilators (2) Volatiles (5) Test Sub-Category Other (2) Test Test Name 4525B Torsemide, Blood 4525SP Torsemide, Serum/Plasma