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) (2) Sample Type (-) Blood (2) Serum or Plasma (1) Urine (2) Test Area Therapeutics (2) Test Category (-) Analgesics (2) Test Sub-Category (-) Opiates/Opioids (2) Other (2) Test Test Name 4240B Sufentanil, Blood 9264B Sufentanil Screen, Blood