Practice Quiz

COMLEX Osteopathic Medicine

Category - Digestion

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Duncan is told by Dr. Gurney, D.O. that he needs a breath test to see if excess carbon dioxide production is present. Which of the following conditions is Dr. Gurney testing for?
  1. H. Pylori
  2. Stomach cancer
  3. Lung volume
  4. Lung cancer
Explanation
Answer - A - The bacterium Helicobacter pylori can secrete toxins that increase the level of urease, which breaks down urea into ammonia and CO2. A breath test is performed by a patient breathing into a special bag and sending it to a laboratory for analysis. It is a non-invasive way to help diagnose a patient with the bacteria.
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