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 -
<p>Davidson's principles and practice of medicine 22nd edition. *urea breath test is highly specific and sensitive.in detection of h pylori infection</p>
Rapid urease test
Urea breath test
Endoscopy and biopsy
Serum anti H. pylori titre
G.I.T