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 (15) Fluid (4) (-) Hair (1) Meconium (1) Serum or Plasma (13) Tissue (3) Urine (12) Test Area Therapeutics (1) Test Category Analgesics (1) Test Sub-Category (-) Opiates/Opioids (1) Test Test Name 9291H Fentanyl Screen, Hair