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 (2) (-) Serum or Plasma (1) Urine (2) Test Area Therapeutics (1) Test Category Analgesics (1) Test Sub-Category (-) Opiates/Opioids (1) Other (10) Selective Serotonin Reuptake Inhibitors (SSRI) (1) Stimulants (1) Synthetic Cannabinoids (1) Toxic Elements (2) Trace Elements (1) Test Test Name 4240SP Sufentanil, Serum/Plasma