HELICOBACTER PYLORI (HPI) ANTIBODIES, IgA
1 mL serum collected from SST or red top.
Enzyme-linked immunosorbent assay (ELISA)
Room temp: 3 days, Refrigerated: 3 days, Frozen: 7 days
Diagnose H pylori infection in patients with duodenal disease and for monitoring the eradication of H pylori following antimicrobial therapy; identify the small percentage of H pylori-infected patients who fail to mount a systemic IgG response and demonstrate IgA antibodies only and for those patients who have chronic mucosal infections