中心供氧出孔处细菌污染情况的调查及消毒方法探讨

Investigation of bacteria contaminate in outlet areas of central oxygen supply and exploration on disinfection methods

目的了解中心供氧出孔处细菌污染程度,探讨消毒方法,控制医院感染。方法对浙江省平湖市二所医院的209个中心供氧出孔处样本进行细菌检测,并以自身对照的方法用0.5%碘伏消毒后再采样检测,作消毒前后菌落数比较。统计学处理采用SPSS 10.0软件,以合格数做x2检验。结果209份样本的平均合格率为47.4%,经碘伏消毒后合格率上升到92.8%,经统计学处理有显著性差异(x2=103.002,P<0.0001)。结论中心供氧出孔处细菌污染较严重,采用0.5%碘伏棉拭子消毒能达到消毒效果。

Objective To know the contaminate level of central oxygen supply outlet areas and to explore disinfection methods is in order to control hospital infection. Method Testing bacteria on 209 samples of outlet areas of central oxygen supply in two hospitals of PingHu city and then testing the samples in the way of self comparison after disinfection by 0.5 % iodine can compare the number of bacteria groups before and after disinfection. Statistics anaysis uses SPSS10.0 software and make x^2 test for eligibility number. Result The average eligibility rate of 209 samples is 47.4 %, which rises to 92.8 % after iodine disinfection.. The difference is obvious（x^2 = 64. 798, P≤0,001 ）. Conclusion The bacteria contamination is serious in outlet areas of central oxygen supply. Disinfection effect can be reached with 0.5 % iodine.