Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Gas Chromatography (GC) (5) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (6) Sample Type Blood (1) (-) Serum or Plasma (1) Test Area Therapeutics (1) Test Category (-) Analgesics (1) Stimulants (1) Test Sub-Category Opiates/Opioids (1) Test Test Name 9324SP Methadone Screen, Serum/Plasma