Stool for Helicobacter Pylori Antigen

Specimen Required

STOOL

Fasting Required

Purpose of the Test

The test is used to diagnose an H. pylori infection, which is a common bacterial infection that can cause ulcers, gastritis, and other gastrointestinal problems. H. pylori infection is also a risk factor for stomach cancer.

When this test is required

The test is requested when a healthcare provider suspects that an individual may have an H. pylori infection based on their symptoms, such as abdominal pain, bloating, nausea, vomiting, and loss of appetite. The test may also be ordered for individuals who have a family history of stomach cancer or who have been previously treated for an H. pylori infection to monitor the effectiveness of treatment.

What the Test Detects

The stool for Helicobacter pylori (H. pylori) antigen test detects the presence of H. pylori bacteria in the stool. H. pylori is a type of bacteria that can infect the stomach and is a common cause of gastritis, peptic ulcers, and other gastrointestinal problems.

Preparation for the Test

No specific preparation is needed for the test. However, it is recommended to avoid taking antibiotics or proton pump inhibitors (PPIs) for at least two weeks before the test, as these medications can affect the accuracy of the test results. It is also important to follow the instructions of the healthcare provider regarding the collection and transportation of the sample to ensure accurate test results.

Sample Requirements

The test requires a fresh stool sample that is collected in a sterile container.

Additional Notes

The stool for H. pylori antigen test is a non-invasive and relatively simple test that can be performed in a doctor’s office or laboratory. It is important to note that false-negative results may occur if an individual has recently taken antibiotics or proton pump inhibitors, so it is recommended to avoid these medications for at least two weeks before the test. False-positive results may also occur if an individual has ingested H. pylori bacteria from contaminated food or water. It is important to discuss any concerns or questions about the test with a healthcare provider.

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