Check for Helicobacter pylori on an empty stomach

The test for H. pylori requires fasting. At this stage, the most common method is the C13 or C14 blow test. If you can choose, the C13 blow test is recommended first. In addition, patients should not take acid suppressants such as proton pump inhibitors, bismuth, and anti-inflammatory drugs for one month before the blow test. If there is, they should stop taking the drug for one month before testing. Because taking these drugs within a month can affect the test results and cause false negatives, there is no way to tell if the patient is really free of H. pylori infection.