The H. pylori Urease Test detects the presence of Helicobacter pylori, a bacteria linked to stomach ulcers and chronic gastritis. This test detects the urease enzyme generated by H. pylori, which hydrolyzes urea into ammonia and CO2. When a patient consumes a urea solution tagged with a certain isotope, the presence of H. pylori can be identified by measuring a rise in ammonia or by examining breath samples for labeled carbon dioxide. The test is non-invasive, rapid, and produces consistent results, making it an effective tool for identifying H. Helicobacter pylori infection.