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测定急性腹泻病儿大便pH值,探讨与小儿急性腹泻病因关系。以精密试纸对细菌感染性腹泻病(Ia组)、急性非细菌感染性腹泻(Ib组)、急性非感染性腹泻(Ⅱ组)和非腹泻病儿(Ⅲ组)大便pH测定,对急性细菌感染性腹泻病儿大便连续监测。结果3年中测定了846例病儿大便,其中76例连续测定;Ia组大便pH8.0±1.06,Ib组5.79±0.51,Ⅱ组5.69±0.4,Ⅲ组5.92±0.46.Ia组与其他组差异明显(U=2.18,P<0.05),Ib组与Ⅱ、Ⅲ组间无显著差异(U=0.15,P>0.05);各种病原茵致泻大便pH值无差异(x~2=2.52,P>0.05)。Ia组恢复期大便pH值随着腹泻次数和大便中白细胞数减少以及细菌培养转阴而下降(x~2=113.38,P<0.01)。结果表明,大便pH值测定可作为小儿急性腹泻病因的简单、快速、价廉的初步诊断及指导应用抗菌药的重要参考资料。
Determination of stool in children with acute diarrhea pH value to explore the etiology of pediatric acute diarrhea. The precision test strips were used to determine the stool pH of bacterial diarrhea (group Ia), acute non-bacterial diarrhea (group Ib), acute non-infectious diarrhea (group II) and non-diarrhea children (group Ⅲ) Infectious diarrhea children stool continuous monitoring. Results A total of 846 cases of stools were determined in 3 years, of which 76 cases were consecutively measured. Stool pH8.0 ± 1.06 in Ia group, 5.79 ± 0.51 in Ib group, 5.69 ± 0.4 in II group and 5.92 ± 0.46 in III group were significantly higher than those in other groups (U = 2.18, P <0.05). There was no significant difference between group Ib and groups II and III (U = 0.15, P> 0.05) , P> 0.05). In the Ia group, the stool pH decreased with the number of diarrhea and the number of leucocytes in the stool and the negative bacterial culture (x ~ 2 = 113.38, P <0.01). The results show that the stool pH can be used as a simple, rapid and inexpensive initial diagnosis of pediatric acute diarrhea and guide the use of antimicrobial drugs an important reference.