A carbon 13 urea breath test of 8.5 dpm suggests that the body is infected with Helicobacter pylori and needs to be taken seriously. If the carbon 14 urea breath test 8.5dpm is normal. Carbon 13 urea breath test normal range value is 0~4dpm, the test result is 8.5dpm, exceeding the normal range value of more than 2 times is not serious, but suggests that the body infected with Helicobacter pylori, need to pay attention to, give eradication of Helicobacter pylori treatment. Clinical commonly used quadruple therapy against H. pylori infection, commonly used drugs are amoxicillin, furazolidone, omeprazole, bismuth potassium citrate and so on. The normal range of carbon 14 urea breath test is 0~100dpm, and the test result of 8.5dpm is normal, without special treatment. It is recommended to go to the specialist interview, under the guidance of the physician to use drugs, not self-medication.