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) (1) Sample Type (-) Blood (2) Meconium (2) Serum or Plasma (2) Urine (1) Test Area Therapeutics (2) Test Category (-) Analgesics (2) Test Sub-Category (-) Opiates/Opioids (2) Test Test Name 0801B Buprenorphine and Metabolite - Free (Unconjugated), Blood 0802B Buprenorphine and Metabolite - Free (Unconjugated) Screen, Blood