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 (25) Fluid (4) Oral Fluid (Saliva) (1) Serum or Plasma (28) (-) Tissue (1) Urine (14) Test Area Exposure (1) (-) Therapeutics (1) Test Category Analgesics (1) Test Sub-Category CNS Stimulants (1) (-) Opiates/Opioids (1) Test Test Name 8722TI Methadone and Metabolite, Tissue