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 (10) Fluid (2) Hair (1) Serum or Plasma (8) (-) Tissue (1) Urine (7) Test Area Therapeutics (1) Test Category (-) Analgesics (1) Anesthetics (1) Antidepressants (1) Depressants (2) Test Sub-Category Opiates/Opioids (1) Test Test Name 9176TI Fentanyl and Metabolite Screen, Tissue