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目的动态观察新建病区在使用后物体表面微生物情况与旧病区物体表面之间的差异。方法选择床头柜、衣柜、床垫作为代表,每月对新启用病区和使用5年以上病区分别进行监测,连续8个月,每月各20份;按《消毒技术规范》(2002版)物体表面菌落计数的检测方法检测。结果新、旧病区第1～2个月和第3～4个月的培养计数均值分别为2.65、12.86和4.83、14.21,t值分别为3.996、3.669,差异有统计学意义;第5～6个月、第7～8个月的培养计数均值分别为7.22、15.33和10.03、15.16,t值分别为3.174、2.008,差异有统计学意义。结论新建病区在收治病人7个月后其物体表面微生物污染状况与旧病区的无差异,可检出条件致病菌,应加强对物体表面的清洁与消毒。
Objective To dynamically observe the difference between the microbial status of the surface of the newly built ward after use and the surface of the old ward. Methods The bedside cabinets, wardrobes and mattresses were chosen as the representative. The new ward and the ward with more than 5 years were monitored every month for 20 consecutive months for 8 months and 20 months respectively. According to “Disinfection Technical Specification” (2002 edition) Detection of colony counts on the surface of objects. Results The mean values of culture counts in the first and second months and the third to fourth months of new and old ward were 2.65,12.86 and 4.83,14.21, respectively, and the t values were 3.996 and 3.699 respectively. The differences were statistically significant. Month, the average number of culture counts in the 7th to 8th month was 7.22,15.33 and 10.03,15.16 respectively, the t values were 3.174,2.008 respectively, the difference was statistically significant. Conclusion The newly diagnosed ward has no difference between the microbial contamination of the surface of the object and the old ward after receiving the patient for 7 months. It can detect the pathogenic bacteria and should clean and sterilize the surface of the object.