Helicobacter pylori infection diagnostic test

Helicobacter pylori infection Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S[2]

Nonendoscpic diagnostic studies

• Antibody testing is inexpensive and widely available but poor PPV in populations with a low prevalence of H. pylori infection limits its usefulness in clinical practice.
• The UBTs and fecal antigen tests provide reliable means of identifying active H. pylori infection before antibiotic therapy.
• The UBT is the most reliable nonendoscopic test to document eradication of H. pylori infection.
• The monclonal fecal antigen test provides another nonendoscopic means of establishing H. pylori cure after antibiotic treatment.
• Testing to prove H. pylori eradication appears to be most accurate if performed at least 4 wk after the completion of antibiotic therapy.