Study for the Medical Council of Canada Qualifying Examination (MCCQE) I. Engage with flashcards and multiple-choice questions with detailed feedback. Prepare confidently!

Multiple Choice

What are the common risk factors for peptic ulcer disease and how do you approach testing and treatment?

Peptic ulcers come from two main factors that damage the stomach lining: NSAID use and Helicobacter pylori infection. NSAIDs reduce protective prostaglandins in the stomach, weakening the mucosal barrier, while H. pylori infection leads to chronic gastritis and mucosal injury that predisposes to ulcers. Because both factors are common, testing for H. pylori is a central step when an ulcer is suspected. Noninvasive tests such as the urea breath test or stool antigen test are commonly used first; endoscopy with biopsy is reserved for cases with alarm features or when noninvasive tests are inconclusive or you need tissue confirmation. If H. pylori is detected, the standard approach is to start acid suppression with a proton pump inhibitor and initiate eradication therapy to cure the infection and reduce ulcer recurrence. Eradication regimens typically include a PPI plus two antibiotics (for example, amoxicillin with clarithromycin or metronidazole, or a bismuth-containing quadruple therapy depending on local resistance). If the ulcer is primarily NSAID-related, stopping or minimizing NSAID use and providing acid suppression with a PPI is essential, with eradication therapy only if H. pylori is present. So the best answer accurately lists both risk factors, the appropriate testing options for H. pylori, and the treatment approach contingent on the test result.

Peptic ulcers come from two main factors that damage the stomach lining: NSAID use and Helicobacter pylori infection. NSAIDs reduce protective prostaglandins in the stomach, weakening the mucosal barrier, while H. pylori infection leads to chronic gastritis and mucosal injury that predisposes to ulcers. Because both factors are common, testing for H. pylori is a central step when an ulcer is suspected. Noninvasive tests such as the urea breath test or stool antigen test are commonly used first; endoscopy with biopsy is reserved for cases with alarm features or when noninvasive tests are inconclusive or you need tissue confirmation.

If H. pylori is detected, the standard approach is to start acid suppression with a proton pump inhibitor and initiate eradication therapy to cure the infection and reduce ulcer recurrence. Eradication regimens typically include a PPI plus two antibiotics (for example, amoxicillin with clarithromycin or metronidazole, or a bismuth-containing quadruple therapy depending on local resistance). If the ulcer is primarily NSAID-related, stopping or minimizing NSAID use and providing acid suppression with a PPI is essential, with eradication therapy only if H. pylori is present.

So the best answer accurately lists both risk factors, the appropriate testing options for H. pylori, and the treatment approach contingent on the test result.