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) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (8) Fluid (4) Meconium (1) Oral Fluid (Saliva) (1) Serum or Plasma (7) (-) Tissue (3) Urine (6) Test Area Therapeutics (3) Test Category Analgesics (3) Test Sub-Category (-) Opiates/Opioids (3) Other (1) Your search has returned no tests.