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) (5) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (24) Sample Type Blood (12) Fluid (4) Serum or Plasma (12) Tissue (1) Urine (7) Test Area Therapeutics (36) Test Category (-) Analgesics (36) Metals/Elements (14) Test Sub-Category (-) NSAIDs (13) (-) Opiates/Opioids (23) Other (5) Your search has returned no tests.