Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type (-) Blood (4) Meconium (1) Serum or Plasma (4) Urine (3) Test Area Therapeutics (4) Test Category (-) Analgesics (4) NPS/Designer Drugs (3) Test Sub-Category Antipyretics (2) NSAIDs (1) (-) Opiates/Opioids (4) Other (2) Test Test Name 0200B Alfentanil, Blood 0801B Buprenorphine and Metabolite - Free (Unconjugated), Blood 0802B Buprenorphine and Metabolite - Free (Unconjugated) Screen, Blood 0885B Butorphanol - Free (Unconjugated), Blood