The reference value for the Carbon 14 test is less than 100 dpm/mmol as negative and more than 100 dpm/mmol as positive, suggesting H. pylori infection. The Carbon 14 test is a non-invasive test to detect H. pylori in the stomach and requires an empty stomach and is painless. A positive Carbon 14 test indicates that the stomach is infected with H. pylori, and further tests are needed to clarify whether there is an organic disease of the digestive tract and to take relevant treatment. Common gastrointestinal infectious diseases include chronic gastritis, peptic ulcer, and even gastric cancer. It is recommended that patients with abnormal carbon 14 test should go to regular hospitals, have regular medical checkups, avoid infecting others, and take medication regularly under the guidance of a doctor to avoid delaying their condition.