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) (1) Sample Type Blood (17) Fluid (6) (-) Hair (1) (-) Oral Fluid (Saliva) (1) Serum or Plasma (15) Tissue (5) Urine (9) Test Area (-) Therapeutics (2) Test Category Analgesics (2) Test Sub-Category Opiates/Opioids (2) Your search has returned no tests.