What is the normal reference range for carbon-13 Helicobacter pylori?
Aug 27, 2025
Source: Cainiu Health
Dr. Li Jingxiang
Introduction
Carbon-13 Helicobacter pylori typically refers to testing for Helicobacter pylori infection using the Carbon-13 urea breath test. Normally, the reference range for the Carbon-13 urea breath test is 0-4 dpm/mmol CO₂. If the result is abnormal, prompt medical consultation and treatment are recommended. The test should be performed after fasting or abstaining from food for at least 2 hours, and patients should avoid taking antibiotics, acid-suppressive medications, and other related drugs prior to the test.
Carbon-13 Helicobacter pylori generally refers to testing for Helicobacter pylori infection via the Carbon-13 urea breath test. Under normal circumstances, the reference range for the Carbon-13 urea breath test is 0-4 dpm/mmol CO₂. If the result is abnormal, timely medical consultation and treatment are recommended. Detailed explanation is as follows:
The Carbon-13 urea breath test is used to detect Helicobacter pylori infection, with a reference range of 0-4 dpm/mmol CO₂. A value within this range indicates no Helicobacter pylori infection. If the value exceeds 4 dpm/mmol CO₂, it suggests a possible Helicobacter pylori infection, which should be interpreted in combination with clinical symptoms and other diagnostic findings.
Prior to the test, patients should fast or refrain from eating for at least 2 hours, and avoid taking antibiotics, acid-suppressive medications, or other drugs that may interfere with the accuracy of the test results. During the test, patients must follow instructions carefully when exhaling to ensure proper sample collection. After the test, if mild discomfort occurs, it typically resolves spontaneously. However, if the discomfort persists or worsens, prompt medical consultation is advised.
