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 (20) (-) Hair (1) Serum or Plasma (15) Urine (11) Test Area Test Category Test Sub-Category Test Test Name 9291H Fentanyl Screen, Hair