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What is urea breath testing?

Gary W. Falk, MD
Gastroenterology
Urea breath testing is an accurate non-invasive test for the presence of H. pylori infection. This test involves the detection of gastric urease -- the enzyme used by H. pylori to metabolize urea -- in the patient’s breath. Since humans do not normally metabolize urea, the test easily discriminates between infected and uninfected individuals according to the presence or absence of urease breakdown products in expired breath.

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