Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (7) Fluid (1) Hair (2) Liquid (2) (-) Meconium (1) Nails (2) RBCs (2) Serum or Plasma (6) Urine (5) Test Area Newborn Tox (1) Test Category Analgesics (1) Test Sub-Category (-) Opiates/Opioids (1) Test Test Name 4127ME Buprenorphine and Metabolite - Total (Qualitative), Meconium