Typically, a carbon 13 breath test result of 55 dpm is considered a more serious condition. Carbon 13 breath test refers to the examination of whether the organism is infected with Helicobacter pylori by blowing air and utilizing orally administered nuclide carbon 13-labeled urea, which has the advantages of being non-invasive, highly accurate, specific, convenient and quick, and is of great significance in the treatment of chronic gastritis, peptic ulcer and the prevention of gastric cancer, among others. It should be noted that the results of this test are easily affected by diet and medication, so the test should be performed on an empty stomach or more than 2 hours after a meal, stop using acid-suppressing medication for 2 weeks, and stop using antibiotics and bismuth for 4 weeks. The normal range of carbon 13 breath test is 0 to 4dpm, if the result shows 55dpm, it suggests that the organism has a more serious H. pylori infection, and it is recommended to consult a doctor in time for early treatment under the doctor’s guidance.