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) (1) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (6) (-) Fluid (3) Serum or Plasma (3) (-) Tissue (2) Umbilical Cord (1) Urine (2) Test Area Drugs of Abuse (1) Therapeutics (4) Test Category (-) Analgesics (4) (-) Drugs of Abuse (1) Therapeutics (4) Test Sub-Category Opiates/Opioids (4) Other (1) Your search has returned no tests.