The OnSite H. pylori Ab Combo Rapid Test is a sandwich lateral flow chromatographic immunoassay for the qualitative detection of antibodies (IgG, IgM and IgA) against Helicobacter pylori (H. pylori) in human serum, plasma or whole blood.Uses serum, plasma or whole blood specimen.No need to avoid certain medications. Non-invasive, easy to perform procedure. Time to result is 15 minutes.