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) (4) Enzyme Immunoassay (EIA) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (16) Sample Type Blood (2) Serum or Plasma (2) Test Area Drugs of Abuse (2) Therapeutics (2) Test Category Analgesics (2) Depressants (2) Test Sub-Category (-) Opiates/Opioids (4) Organic (4) Other (7) Your search has returned no tests.