Microorganisms in air and environmental object surfaces of hemodialysis room between two shifts
10.12138/j.issn.1671-9638.20252535
- VernacularTitle:血液透析室两班次之间空气及环境物体表面微生物调查与分析
- Author:
Yuhua LIU
1
;
Sidi LIU
;
Xiaofang ZHU
;
Lingyu LAI
;
Liping WANG
;
Xun HUANG
Author Information
1. 中南大学湘雅医院医院感染控制中心,湖南长沙 410008;福建医科大学孟超肝胆医院感控科,福建 福州 350028
- Publication Type:Journal Article
- Keywords:
hemodialysis;
air;
environmental object surface;
bed-making;
microorganism
- From:
Chinese Journal of Infection Control
2025;24(10):1430-1434
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the impact of bed-making manipulation on the air surrounding bed units in hemodialysis room,evaluate the effectiveness of routine terminal disinfection,and provide scientific basis for optimi-zing infection control measures.Methods Air specimens(pre-bed-making group)and environmental object surface specimens(pre-terminal disinfection group)around bed units were collected when hemodialysis was about to be fi-nished.Air specimens after bed-making(bed-making group)and environmental object surface specimens after ter-minal disinfection(terminal disinfection group)were also collected.Bacterial colonies were counted and identified.Results A total of 714 air specimens were collected from 238 bed units of 45 hemodialysis units before and during bed-making.The average bacterial colony count during bed-making was higher than that before bed-making([2.72±3.43]CFU/plate vs[0.69±1.50]CFU/plate,P＜0.05).The qualified rate of microbial colony count before bed-making was higher than that during bed-making(96.64％vs 64.71％,P＜0.05).A total of 450 environmental ob-ject surface specimens from 90 bed units of 45 hemodialysis units were collected before and after terminal disinfec-tion.The average bacterial colony count before terminal disinfection was higher than that after terminal disinfection([8.18±20.6]CFU/cm2 vs[1.49±3.44]CFU/cm2.P＜0.05).The qualified rate of microbial colony count after terminal disinfection was higher than that before terminal disinfection(98.22％vs 92.44％,P＜0.05).The micro-organisms in the air and environment were mainly coagulase negative Staphylococcus.Conclusion Bed-making has a certain impact on the air microorganisms around the bed units,and terminal disinfection can reduce the bacterial co-lony count of the environment.It is necessary to pay attention to the cleaning and disinfection of the environment for medical treatment,and carry out bed-making manipulation under clear condition to minimize the risk of infection.
