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) (2) (-) Enzyme Immunoassay (EIA) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (8) Sample Type Blood (2) Meconium (2) Serum or Plasma (2) Urine (3) Test Area Newborn Tox (1) Therapeutics (8) Test Category (-) Analgesics (9) NPS/Designer Drugs (3) Test Sub-Category (-) Opiates/Opioids (9) Your search has returned no tests.