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 (76) Fluid (19) (-) Meconium (1) Plasma (1) RBCs (1) Serum or Plasma (90) Tissue (10) Urine (42) 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