A patient with H. Pylori infection is treated with drugs. The best method to detect presence of residual H.Pylori infection in this person is which of the following?: (A) Rapid urease test, (B) Urea breath test, (C) Endoscopy and biopsy, (D) Serum anti H.Pylori titre
Answer is B. Urea breath test is a test with high sensitivity and specificity for Helicobacter pylori. It is a non-invasive test used to diagnose and confirm elimination of H.pylori infection. Ref: Davidson's principles and practice of Medicine, 20th Edition, Chapter 22, Page 886; Harrison's Principles of Internal Medicine, 17th Edition, Page 947; 16th Edition, Page 1755, 887