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 (6) Serum or Plasma (8) (-) Urine (2) Test Area Drugs of Abuse (1) Therapeutics (1) Test Category Antiarrhythmics (1) Antihypertensives (15) (-) Diuretics (1) Drugs of Abuse (4) Drugs of Abuse, Therapeutics (1) Therapeutics (6) (-) Vasodilators (1) Test Sub-Category Other (2) Test Test Name 4197U Sildenafil and Metabolite, Urine 9318U Diuretics Screen, Urine