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Review
. 2002 May 25;324(7348):1263.
doi: 10.1136/bmj.324.7348.1263.

Helicobacter pylori breath tests

Abi Berger
Review

Helicobacter pylori breath tests

Abi Berger. BMJ. .
No abstract available

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Figures

Figure
Figure
1 Virtually all duodenal ulcers and 80% of gastric ulcers are associated with Helicobacter pylori infections1
Figure
Figure
2 H pylori survives in gastric acid by excreting large amounts of urease. This enzyme breaks down any urea in the stomach to ammonia and carbon dioxide
Figure
Figure
3 The ammonia neutralises any acid found directly in the vicinity of the bacteria, allowing the bacteria to survive
Figure
Figure
4 The carbon dioxide is absorbed into the blood stream and then released from the lungs
See this image and copyright information in PMC

References

    1. Graham DY. Helicobacter pylori infection in the pathogenesis of duodenal ulcer and gastric cancer: a model. Gastroenterology. 1997;113(6):1983–1991. - PubMed

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