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目的摸清小儿急性腹泻病原构成比及粪ＰＨ值的早期筛选诊断价值．方法１９８８年５月～１９９２年４月小儿急性腹泻３６８例．挑取新鲜粪便作常规镜检，并用广泛试纸测定粪ＰＨ值，然后将标本置ＣａｒｙＢｌａｉｒ培养基中，２４ｈ内送实验室进行细菌分离和鉴定．粪上清液用ＥＬＩＳＡ法检测轮状病毒．结果本组３６８例共检出３１种病原，３８５株菌株，病原总检出率达６７７％，其中混合感染占３７８％．按细菌科分，以弧菌科最多（３９７％）；按细菌属分，则以气单胞菌占首位（２６８％）．并证实细菌性腹泻的粪ＰＨ值偏碱性，而轮状病毒性则偏酸性．结论本地区小儿急性腹泻病原复杂达３１种，单凭临床表现很难作出病因诊断，但粪ＰＨ值有早期筛选诊断价值．
Objective To find out the pathogenic constituent ratio of acute diarrhea in children and the value of early screening screening of PH value. Methods From May 1988 to April 1992, 368 children with acute diarrhea. Pick fresh faeces for routine microscopic examination, and a wide range of test paper determination of manure PH value, and then the specimen was placed Cary Blair medium, 24h sent to the laboratory for bacterial isolation and identification. Rot supernatant was detected by ELISA rotavirus. Results A total of 368 pathogenic strains and 385 strains were detected in 368 cases of this group. The total detection rate of pathogens was 67.7%, of which 37.8% were mixed infections. According to the bacterial division, the largest number of strains of Vibrio (39.7%); according to the genus of bacteria, aerosols accounted for the first place (26.8%). And confirmed that bacterial diarrhea PH value of alkaline, and rotavirus is acidic. Conclusion 31 cases of pediatric acute diarrhea pathogenic complex in the region, it is difficult to make etiological diagnosis based on clinical manifestations, but PH value of early screened diagnostic value.