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 (9) Fluid (5) Hair (1) Meconium (1) Oral Fluid (Saliva) (1) Serum or Plasma (8) (-) Tissue (4) Urine (6) Test Area Therapeutics (4) Test Category Analgesics (4) Test Sub-Category (-) Opiates/Opioids (4) Other (2) Your search has returned no tests.