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) (7) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (7) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (30) Sample Type Blood (3) Serum or Plasma (3) Urine (1) Test Area Drugs of Abuse (5) Therapeutics (2) Test Category Analgesics (2) Depressants (2) Hallucinogens (3) Test Sub-Category (-) Opiates/Opioids (4) (-) Other (3) Your search has returned no tests.