两种皮肤消毒法消毒效果的观察

EXPERIMENTAL STUDY ON DISINFECTION EFFICACY OF TWO METHODS FOR DISINFECTION OF SKIN

目的比较往返平行擦拭法(习惯法)与环形螺旋式擦拭法(常规法)两种局部皮肤消毒法的消毒效果。方法采用棉拭采样和细菌检测法进行了实际消毒效果比较。结果习惯法擦拭1遍所需时间比常规法明显缩短。两种消毒法所使用棉签及其棉签头长度和棉签头蘸消毒液的长度基本相同。两种消毒法细菌检测的阳性率无明显差异,而1遍消毒污染指数与2遍消毒污染指数差异非常显著。2遍消毒后,习惯法的阳性率则明显高于常规法。在阳性标本中,检出粘质沙雷菌,肺炎克雷伯菌,弗劳地枸橼酸菌。结论习惯法比常规法节省时间,但其消毒效果可靠性则不如常规法;擦拭消毒2遍比消毒1遍消毒效果更好。

Objective To compare the efficacy of to - and - fro parallel wiping method （ habitual method） and circular spiral wiping method （routine method） in disinfection of skin. Methods Sampling with swab and bacteria examination were used to compare the efficacy of disinfection using the 2 methods. Results Habitual disinfection method required shorter time than routine method did, but there was no obvious difference in positive rate of bacteria examination. The length of the cotton swab, cotton part of the swab and the length of the cotton part dipped in disinfectant were alike. There was obvious difference in crossover comparison of contamination indexes between disinfection once and twice. After disinfection twice, the positive rate of contamination after habitual disinfection was higher than that after routine disinfection. In the positive samples, Serratia marcescens, Klebsiella pneumoniae and Citrobacterfreundii were detected. Conclusions Habitual disinfection can save time compared with routine disinfection, but its reliability of disinfection effiicacy is lower than that of routine method. Wiping disinfection twice is better than once.