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 (18) Fluid (2) Serum or Plasma (19) (-) Tissue (1) Urine (16) Test Area Therapeutics (1) Test Category (-) Analgesics (1) Metals/Elements (3) Stimulants (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 8722TI Methadone and Metabolite, Tissue