The Carbon 14 Breath Test, correctly named the Carbon 14 Urea Breath Test, has a tiny amount of radiation, but the radiation to the patient and operator is minimal and negligible. The Carbon 14 Urea Breath Test utilizes the property that H. pylori can produce highly active urease to detect the presence of H. pylori infection in the examinee. This test has the advantages of convenience, speed, specificity and sensitivity. The Carbon 14 Urea Breath Test utilizes carbon 14 labeled urea, which has a very low radiation dose to the human body and poses a negligible radiation risk to the subject and the operator. If you need to do carbon 14 urea breath test to detect the presence of Helicobacter pylori infection, you should cooperate with the operator to complete the test, and consult a doctor in time if you have any physical discomfort during or after the test.