What are tests for H. Pylori infection?
HOW IS H. PYLORI DIAGNOSED? Various techniques for the diagnosis of H. pylori are available. The specific diagnostic test or tests used to confirm H. pylori infection depends upon various factors, including the accuracy and availability of particular tests, and the specifics of each patient’s case. The most commonly used include: Blood tests Blood tests can detect the presence of specific antibodies against the H. pylori bacterium (these are known as serologic tests). Breath tests Breath tests (known as urea breath tests) involve the ingestion of a specialized solution containing a substance (13C [carbon]- or 14C-labeled urea), which are broken down by the H. pylori bacterium into certain chemical components, including carbon dioxide. These breakdown products are detectable in breath samples. Stool tests Tests are available that detect the presence of H. pylori proteins in stool. Endoscopy For some patients, diagnostic testing may include endoscopy of the upper gastrointestinal tract t