Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (2) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (10) Fluid (3) (-) Meconium (2) Serum or Plasma (4) (-) Tissue (2) Urine (6) Test Area Newborn Tox (1) Postmortem (2) Therapeutics (1) Test Category Analgesics (2) Therapeutics (2) Test Sub-Category (-) Opiates/Opioids (2) (-) Other (2) Your search has returned no tests.