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) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (5) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (17) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category (-) Analgesics (2) Antacids (3) Antiarrhythmics (1) Antithyroids (2) Biomarkers (1) Stimulants (2) Test Sub-Category Opiates/Opioids (2) Your search has returned no tests.