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