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 (69) Fluid (12) Hair (8) Liquid (2) Meconium (1) Nails (5) (-) Oral Fluid (Saliva) (1) RBCs (6) Serum or Plasma (67) Stool (1) Tissue (5) Urine (53) Test Area Therapeutics (1) Test Category Drugs of Abuse (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 8894OF Methadone and Metabolite (Qualitative), Oral Fluid (Saliva)