Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (5) Fluid (1) Serum or Plasma (3) (-) Urine (5) Test Area Drugs of Abuse (1) Therapeutics (4) Test Category (-) Analgesics (5) Test Sub-Category (-) Opiates/Opioids (5) Your search has returned no tests.