采用CM型氢气微分析仪,对46例溃疡病人在服用甲氰咪呱过程中进行葡萄糖呼吸试验,发现6例肺泡呼出气含氢量>20ppm,即呼吸试验阳性。服用抗生素后复查葡萄糖呼吸试验均转阴性,提示6例阳性病人存在小肠细菌过度生长,发生率为13.05%。扼要介绍葡萄糖呼吸试验的原理、溃疡病人服用甲氰咪呱后引起小肠细菌过度生长的机理、临床表现及治疗方法。 Using CM-type hydrogen microanalyzer, 46 patients with ulcer patients were taking glucose breath test while taking cimetidine, and found that 6 patients with alveolar exhaled breath had a hydrogen content of> 20ppm, which means the breath test was positive. After taking antibiotics to review the glucose breath test were negative, suggesting that 6 cases of positive patients there is intestinal bacterial overgrowth, the incidence was 13.05%. Briefly introduce the principle of glucose breath test, ulcer patients after taking cimetidine caused bacterial intestinal overgrowth mechanism, clinical manifestations and treatment.