A H. pylori test value of 5 is generally not serious, and eradication treatment can be prescribed by a doctor if the carbon 13 breath test examiner is still positive after retesting. The Carbon 13 and Carbon 14 breath tests are the most commonly used clinical tests for H. pylori, with a Carbon 13 breath test value in the range of 0 to 4 being normal, and a Carbon 14 breath test in the range of 0 to 100 being normal. Both testing methods may appear H. pylori test value of 5, if the use of carbon 13 breath test test is positive, but the clinical will be considered in the upper limit of the normal value of the value of the existence of false positives, generally recommended later review, if still positive, then you need to use a quadruple drug, such as omeprazole, amoxicillin, clarithromycin, bismuth potassium citrate eradication treatment; If the carbon 14 breath test is used the test is negative, suggesting that there is no H. pylori infection. Therefore, in either case, it generally suggests that the condition is not serious, and treatment is prescribed if necessary.