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 (2) (-) Urine (1) Test Area Drugs of Abuse (1) Test Category (-) Analgesics (1) Biomarkers (2) Solvents (1) Test Sub-Category Opiates/Opioids (1) Your search has returned no tests.