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 (3) Meconium (1) (-) Serum or Plasma (3) Urine (3) Test Area Drugs of Abuse (1) (-) Therapeutics (3) Test Category Analgesics (3) Test Sub-Category Alkaloids (1) Alkylating Agents (1) Barbiturates (3) Benzodiazepines (2) Beta Blockers (1) (-) Opiates/Opioids (3) Other (11) Sympathomimetic Amines (1) Test Test Name 0801SP Buprenorphine and Metabolite - Free (Unconjugated), Serum/Plasma 0802SP Buprenorphine and Metabolite - Free (Unconjugated) Screen, Serum/Plasma 0885SP Butorphanol - Free (Unconjugated), Serum/Plasma