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) (2) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) Sample Type (-) Blood (8) Fluid (3) Serum or Plasma (7) Tissue (1) Urine (4) Test Area Therapeutics (8) Test Category (-) Analgesics (8) Test Sub-Category NSAIDs (4) (-) Opiates/Opioids (8) Other (2) Your search has returned no tests.