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 24 Hour Urine (2) Blood (85) Fluid (17) Hair (4) Liquid (2) (-) Meconium (1) Nails (3) Plasma (1) RBCs (1) Serum or Plasma (72) Tissue (12) Urine (56) 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