<p>If you have symptoms of<br />
- Chronic abdominal pain<br />
- Heart burn<br />
- Frequent nausea, bloating or belching.<br />
- Unexplained anemia<br />
- Class of drugs called PPIs, antibiotics, bismuth all decrease sensitivity of the test. &nbsp;Recommended to avoid PPIs, antibiotics for 1-2 weeks prior to testing.</p>