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) Umbilical Cord (1) (-) Urine (1) Test Area Drugs of Abuse (2) Postmortem (2) (-) Therapeutics (1) Test Category Analgesics (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 2079U Fentanyl and Metabolite, Urine