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) (6) (-) Enzyme Immunoassay (EIA) (3) Gas Chromatography (GC) (5) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Urine (3) Test Area Drugs of Abuse (1) (-) Therapeutics (3) Test Category Analgesics (3) Test Sub-Category (-) Opiates/Opioids (3) Your search has returned no tests.