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) (1) Sample Type Blood (8) Fluid (3) Serum or Plasma (2) (-) Tissue (2) (-) Umbilical Cord (1) Urine (3) Test Area Newborn Tox (1) Postmortem (2) Test Category Drugs of Abuse (1) Therapeutics (2) Test Sub-Category Opiates/Opioids (2) (-) Other (3) Your search has returned no tests.