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 (8) Meconium (1) (-) Oral Fluid (Saliva) (1) Serum or Plasma (8) Urine (8) 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)