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 (49) Fluid (7) Hair (4) Meconium (1) Nails (3) (-) Oral Fluid (Saliva) (1) RBCs (2) Serum or Plasma (47) Tissue (2) Urine (39) 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)