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 (1) Blood (96) Fluid (2) Hair (7) (-) Meconium (1) Nails (5) Plasma (1) RBCs (5) Serum or Plasma (93) Stool (1) Tissue (1) Urine (56) Test Area Test Category Test Sub-Category Test Test Name 2760ME Methadone and Metabolite (Qualitative), Meconium