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) (1) Sample Type Blood (2) Fluid (2) Serum or Plasma (2) Tissue (2) (-) Urine (1) Test Area Therapeutics (1) Test Category (-) Analgesics (1) Drugs of Abuse (1) NPS/Designer Drugs (1) Therapeutics (2) Test Sub-Category Opiates/Opioids (1) Test Test Name 2079U Fentanyl and Metabolite, Urine