Peptic Ulcer Disease: The Daily PANCE Blueprint
A 38-year-old woman presents with 2 months of gnawing epigastric pain that improves within minutes of eating and returns 2 to 3 hours later, often waking her at night. She has no weight loss, vomiting, trouble swallowing, or black stools, and she does not take NSAIDs. Her hemoglobin is normal. She started omeprazole 3 days ago and wants to know whether an infection could be causing her symptoms. Which is the most appropriate way to test for Helicobacter pylori infection?
A. Urea breath test after stopping omeprazole for 2 weeks
B. Urea breath test today while she continues omeprazole
C. Serum H. pylori IgG antibody
D. Upper endoscopy with biopsy today
E. Fasting serum gastrin level
Answer and topic summary
The answer is A. Urea breath test after stopping omeprazole for 2 weeks
Pain that is better with food and worse 2 to 3 hours later and at night is classic for a duodenal ulcer, and H. pylori and NSAIDs are the two main causes. In a patient younger than 60 without alarm features (weight loss, bleeding, anemia, trouble swallowing, persistent vomiting), the approach is test-and-treat with a noninvasive test of active infection: the urea breath test or stool antigen. Timing matters. PPIs suppress the bacteria and cause false-negative results, so she should stop the PPI for 2 weeks before testing (and avoid antibiotics or bismuth for 4 weeks); an H2 blocker or antacid can cover her symptoms in the meantime. Serum antibodies stay positive long after an infection is gone, so serology cannot confirm active infection and is no longer recommended. Endoscopy is for age 60 and older or worrisome alarm features. A gastrin level is for suspected Zollinger-Ellison syndrome, which causes multiple or refractory ulcers. After treatment, confirm eradication with a breath or stool test at least 4 weeks after therapy ends.
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