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) (2) Sample Type (-) Blood (2) Meconium (1) Serum or Plasma (2) (-) Urine (1) Test Area Drugs of Abuse (4) Impairment (2) Postmortem (9) (-) Therapeutics (3) Test Category Analgesics (3) Test Sub-Category Opiates/Opioids (3) Test Test Name 0801B Buprenorphine and Metabolite - Free (Unconjugated), Blood 0801U Buprenorphine and Metabolite - Total (Conjugated/Unconjugated), Urine 0802B Buprenorphine and Metabolite - Free (Unconjugated) Screen, Blood