普通病房床单位细菌污染调查

SURVEY OF BACTERIAL CONTAMINATION OF BED UNITS OF COMMON WARDS

目的了解综合性医院普通病房床单位的污染状况及消毒情况,降低床单位传播医院感染的机会。方法采用微生物学采样和检测方法,对5个病区普通病房的50张床单位进行了调查和监测。结果普外科床单位污染率为90%以上,内科床单位污染率为55%以上。床单位组件中,以枕芯污染率最高,为84.0%;棉胎污染率为78.0%,床垫的污染率为72.0%。病人住院1周以内的床单位平均污染率为27.8%,住院2周以上的床单位平均污染率达到80%以上。经臭氧床单位消毒机消毒30 m in,对床单位表层和深层的自然菌消除率均达99%以上。结论医院普通床单位污染严重,外科床单位污染率最高;随着患者住院时间的延长,床单位污染程度逐渐加重,应进行床单位消毒。

Objective To know the bacterial contamination and disinfection of bed units in common ward of a comprehensive hospital in order to reduce the opportunity of transmission of nosocomial infections. Methods Microbiological sampiing and examination methods were used to survey and monitor 50 bed units of five common wards. Results The average contamination rate of bed units in general surgery wards was above 90% and that in medical wards was higher than 55%. Among the components of bed units, the most serious contamination was found in the pillow cores, with a contamination rate of 84.0%. The contamination rate of the cotton wadding was 78.0% and that of the mattress was 72%. The average contamination rate of a bed unit was 27.8% if the patient stayed in the hospital within a week, while it was above 80% if the patient stayed longer than two weeks. After disinfection by ozone for 30 minutes, the removing rate of natural bacteria on the surface and deep layers of a bed unit was above 99%. Conclusions The contamination of bed unit in a common ward is serious, above all, in the surgery ward. The longer the patients stay in hospital, the heavier the contamination of a bed unit will be. The disinfection of bed unit should be performed.