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 Biomarkers (1) (-) Opiates/Opioids (2) Other (13) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Stimulants (1) Synthetic Cannabinoids (2) Toxic Elements (3) Trace Elements (1) Test Test Name 4240U Sufentanil, Urine 9264U Sufentanil Screen, Urine