Peptic Ulcer Disease: Bacterial Enzymes, H.pylori, and NSAIDs

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Questions and Answers

What is one of the common etiologies for gastric mucosal injury?

  • Reduced mucosal blood flow
  • Normal gastric acid secretion
  • Increased mucus and bicarbonate secretion
  • Chronic corticosteroid use (correct)

Which factor contributes to disrupting mucosal integrity in the stomach?

  • Increased mucus production
  • Helicobacter pylori infection (correct)
  • Enhanced mucosal blood flow
  • Normal intrinsic epithelial cell defense

How do nonsteroidal anti-inflammatory drugs (NSAIDs) contribute to stress-related mucosal damage (SRMD)?

  • Through inhibition of prostaglandin synthesis (correct)
  • By increasing mucus production
  • By enhancing mucosal blood flow
  • By decreasing stomach pH

Which protective factor is involved in maintaining gastroduodenal mucosal integrity?

<p>Intrinsic epithelial cell defense (D)</p> Signup and view all the answers

What is the mechanism by which nonselective NSAIDs, including aspirin, cause gastric mucosal damage?

<p>Direct irritation of the gastric epithelium and systemic inhibition of endogenous mucosal PG synthesis (D)</p> Signup and view all the answers

How does the addition of aspirin affect the ulcer-sparing benefit of a selective COX-2 inhibitor?

<p>Reduces the ulcer-sparing benefit and increases ulcer risk (C)</p> Signup and view all the answers

What is the effect of corticosteroids alone on the risk of ulcers and complications?

<p>Does not increase risk of ulcers or complications (D)</p> Signup and view all the answers

Which factor has been linked to an increased risk of peptic ulcer disease, impaired ulcer healing, and ulcer recurrence?

<p>Cigarette smoking (D)</p> Signup and view all the answers

What is the role of HCl in the stomach?

<p>Destroys microorganisms (A)</p> Signup and view all the answers

Which cells release histamine and stimulate HCl secretion in the stomach?

<p>G cells (C)</p> Signup and view all the answers

What inhibits HCl secretion in the body?

<p>Somatostatin (D)</p> Signup and view all the answers

Which substances increase acid secretion through G cells?

<p>Fats and Lipids (A)</p> Signup and view all the answers

How do medications decrease HCl secretion in the body?

<p>Inhibit histamine release (D)</p> Signup and view all the answers

What is the main factor affecting peptic ulcer disease (PUD) risk?

<p>Use of NSAIDs (C)</p> Signup and view all the answers

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