Final answer:
Methods to detect H. pylori infection include blood antibody test, urea breath test, and stool antigen test.
Step-by-step explanation:
To detect H. pylori infection, several methods can be used:
- Blood antibody test: This test detects the presence of antibodies in the blood against H. pylori. It can indicate a current or past infection.
- Urea breath test: In this test, the patient swallows a solution containing radiolabeled urea. If H. pylori is present, it will break down the urea and produce radiolabeled carbon dioxide that can be detected in the patient's breath.
- Stool antigen test: This test detects the presence of H. pylori antigens in a stool sample.
These methods are noninvasive and provide reliable results for diagnosing H. pylori infection.