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 (2) Liquid (1) (-) Meconium (1) Serum or Plasma (6) Tissue (2) Urine (5) Test Area Newborn Tox (1) Test Category (-) Drugs of Abuse (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 2760ME Methadone and Metabolite (Qualitative), Meconium