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) (5) (-) Enzyme Immunoassay (EIA) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (1) Serum or Plasma (1) Urine (3) Test Area (-) Drugs of Abuse (5) Exposure (2) Therapeutics (35) Test Category Depressants (4) Hallucinogens (1) Test Sub-Category Opiates/Opioids (4) Other (1) Your search has returned no tests.