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 (5) Serum or Plasma (7) (-) Urine (2) Test Area Drugs of Abuse (1) Therapeutics (1) Test Category (-) Diuretics (1) Drugs of Abuse (2) Drugs of Abuse, Therapeutics (1) Therapeutics (3) (-) Vasodilators (1) Test Sub-Category (-) Other (2) Test Test Name 4197U Sildenafil and Metabolite, Urine 9318U Diuretics Screen, Urine