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 (51) Fluid (8) Hair (6) Liquid (1) Meconium (1) Nails (4) (-) Oral Fluid (Saliva) (1) RBCs (4) Serum or Plasma (49) Tissue (3) Urine (41) 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)