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) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (1) Sample Type Blood (6) Serum or Plasma (4) (-) Urine (3) Test Area Therapeutics (3) Test Category Antidepressants (3) Test Sub-Category Opiates/Opioids (1) Other (2) (-) Tricyclic (3) Your search has returned no tests.