HELICOBACTER PYLORI (H. PYLORI) ANTIGEN – STOOL Test

The Helicobacter pylori (H. pylori) Antigen – Stool test detects H. pylori antigens in a stool sample, helping determine whether H. pylori bacteria are currently present in the digestive system.

H. pylori infection can cause chronic gastritis, indigestion, and peptic ulcers and is associated with an increased risk of certain stomach cancers. Unlike antibody blood tests, stool antigen testing can help identify an active infection.

The test may also be used after treatment to determine whether the infection has been successfully eradicated. For accurate follow-up testing, the timing of the test and certain medicines, including antibiotics and acid-suppressing medicines, may affect results. Follow any specific preparation instructions provided by your healthcare provider or laboratory.

Test Recommended for Individuals:

• Individuals with persistent indigestion or dyspepsia
• People experiencing recurrent upper abdominal discomfort
• Individuals with suspected gastritis or peptic ulcer disease
• Patients with a history of H. pylori infection
• People requiring confirmation of an active H. pylori infection
• Individuals undergoing follow-up testing after H. pylori treatment
• Patients advised by their healthcare provider to undergo H. pylori stool antigen testing

FAQs

1. What does the H. pylori Stool Antigen test detect?
It detects H. pylori antigens in stool, providing evidence of whether an active H. pylori infection is present.

2. Is the H. pylori Stool Antigen test better than an H. pylori antibody test?
For detecting active infection, stool antigen testing is generally more useful than antibody testing because antibodies can remain detectable after an infection has cleared.

3. Can the test be used after H. pylori treatment?
Yes. A stool antigen test can be used to confirm eradication after treatment. However, testing too soon after treatment or while taking certain medicines can affect the result, so follow the timing and medication instructions provided by your healthcare provider.