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 (1) (-) Serum or Plasma (2) Urine (1) Test Area Drugs of Abuse (2) Postmortem (3) (-) Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Opiates/Opioids (2) Test Test Name 0801SP Buprenorphine and Metabolite - Free (Unconjugated), Serum/Plasma 0802SP Buprenorphine and Metabolite - Free (Unconjugated) Screen, Serum/Plasma