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) Oral Fluid (Saliva) (1) Serum or Plasma (7) (-) Tissue (3) Urine (5) Test Area Therapeutics (3) Test Category (-) Analgesics (3) Antipsychotics (1) Test Sub-Category Opiates/Opioids (3) Your search has returned no tests.