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 (38) Fluid (5) (-) Hair (1) Serum or Plasma (29) Tissue (3) Umbilical Cord (3) Urine (27) Test Area Therapeutics (1) Test Category Analgesics (1) Test Sub-Category (-) Opiates/Opioids (1) Test Test Name 9291H Fentanyl Screen, Hair