The H. Pylori Antigen Test is a diagnostic test used to detect the presence of Helicobacter pylori bacteria in a stool sample. H. pylori is a type of bacteria that can infect the stomach lining and is commonly associated with gastritis, peptic ulcers, and an increased risk of stomach cancer.
✅ Diagnosing H. pylori Infection: The test is primarily used to confirm an active H. pylori infection in individuals who exhibit symptoms such as stomach pain, bloating, nausea, and indigestion.
✅ Detecting Gastritis or Peptic Ulcers: It is also used to evaluate the cause of gastritis or peptic ulcers, as H. pylori infection is a leading cause of both conditions.
✅ Monitoring Treatment: The test can be used after treatment to confirm that the infection has been successfully eradicated.
✅ Non-Invasive: Unlike other tests like urea breath tests or endoscopy, the stool antigen test is non-invasive and easier to perform.
🧻 Stool Sample Collection: A stool sample is collected from the patient. This can usually be done at home by collecting a small portion of stool in a clean container.
🔬 Laboratory Analysis: The stool sample is then analyzed in the laboratory for the presence of H. pylori antigens, which are proteins produced by the H. pylori bacteria.
The test specifically looks for H. pylori antigens in the stool, which are markers released by the bacteria when it is active in the stomach lining. These antigens are not present in the stool unless there is an active infection.
| Result | Interpretation | Action |
|---|---|---|
| Positive | The stool contains H. pylori antigens, indicating an active infection | Treatment with antibiotics and proton pump inhibitors (PPIs) to eradicate the infection. Follow-up testing after treatment is required. |
| Negative | No H. pylori antigens were detected, indicating no active infection | No treatment is needed for H. pylori infection. Further evaluation may be needed if symptoms persist. |
If the H. pylori antigen test is positive, treatment typically involves a combination of:
Treatment typically lasts 10-14 days. Follow-up testing after treatment is recommended to confirm that the infection has been eradicated.
✔ People with symptoms of peptic ulcers: Such as stomach pain, nausea, bloating, or indigestion.
✔ Individuals with a history of gastritis or ulcers: To check if H. pylori is the underlying cause.
✔ People with a family history of gastric cancer: Since H. pylori infection is a risk factor for stomach cancer, testing may be done to detect the infection early.
✔ Patients undergoing treatment for H. pylori: To confirm eradication after completing antibiotic therapy.
✔ The H. Pylori Antigen Test is used to detect an active infection with Helicobacter pylori, which is associated with gastritis, peptic ulcers, and stomach cancer.
✔ The test is non-invasive and requires only a stool sample.
✔ Positive results indicate the need for treatment with antibiotics and proton pump inhibitors, while negative results suggest no active infection.
✔ It is particularly useful for monitoring treatment and confirming whether H. pylori has been eradicated.