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 (9) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Test Test Name 4240U Sufentanil, Urine 9264U Sufentanil Screen, Urine