摘要
目的通过定量适合性测试,描述医用防护口罩的适合现状以及探索适合性测试的影响因素。方法通过分层抽样选取6所不同级别、性质的医院中不同呼吸道传染病暴露风险部门,即低风险(普通病区)、中风险(如急诊、呼吸科门诊)、高风险(发热门诊、核酸采样点、感控处)的工作人员,包括医生、护士、医技、工勤人员,对两个品牌的拱形和折叠形口罩进行测试,采用环境气溶胶冷凝核计数器法测试医用防护口罩的定量密合性和适合性。结果6所医院共抽取320名工作人员进行测试,在进行正式适合性测试之前,通过专业人员指导,定量密合性测试通过率较被测试人员自行调整明显提升,整体从27.50%提升至57.73%。不同品种医用防护口罩适合性监测的通过率最低为0.94%,最高为84.06%,差异有统计学意义(χ^(2)=561.51,P<0.001)。通过定量密合性测试后,进行标准动作适合性试验时,拱形A、折叠形A、拱形B、折叠形B 4款医用防护口罩通过的比率分别为50.00%、58.25%、66.67%、85.67%。主要是在左右摆头动作之后通过率开始下降。结论适合性测试是保证呼吸道防护效果的有利工具,应充分利用适合性测试数据为工作人员提供合适的医用防护口罩。
Objective To evaluate the fit status of respirators and influencing factors of fit status through quantitative fitting testing.Methods Departments with different respiratory infectious disease exposure risks in 6 hospitals of different levels and properties were selected by stratified sampling,that is,hospital staff with low risk(ge-neral ward),medium risk(such as emergency and respiratory outpatient),and high risk(fever clinic,nucleic acid sampling point as well as department of infection control),including doctors,nurses,medical technicians and servicers,arch and folding respirators of two brands were tested,quantitative tightness and fitness of respirators were tested by environmental aerosol condensation nuclear counter method.Results A total of 320 staffs were selected from 6 hospitals to conduct the testing,before the formal fit testing,through professional guidance,the overall passing rate of the quantitative tightness check was significantly improved from 27.50%to 57.73%compared with the self-adjustment of the tested personnel.The passing rates of the fit testing of different respirators were significantly different(χ^(2)=561.51,P<0.001),with the lowest of 0.94%and the highest of 84.06%.After quantitative fit testing,when carrying out fit testing for standard movements,passing rates of arch A,folding A,arch B and folding B respirators were 50.00%,58.25%,66.67%and 85.67%respectively.Passing rates began to drop mainly after the left and right head swing.Conclusion Fit testing is a favorable tool to ensure the efficacy of respiratory protection,fit testing data should be fully utilized to provide suitable respirators for the staff.
作者
胡美华
贾会学
姚希
孙昕霙
闵鹤葳
邓明卓
卢联合
李杰
宋丽红
路简羽
宋雪梅
高航
李六亿
HU Mei-hua;JIA Hui-xue;YAO Xi;SUN Xin-ying;MIN He-wei;DENG Ming-zhuo;LU Lian-he;LI Jie;SONG Li-hong;LU Jian-yu;SONG Xue-mei;GAO Hang;LI Liu-yi(Department of Infection Management-Disease Control and Prevention, Peking University First Hospital, Beijing 100034, China;Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China;Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China;Department of Infection Management, Beijing Ditan Hospital, Beijing 100015, China;Department of Healthcare-associated Infection Management and Disease Prevention and Control, Fuxing Hospital, Capital Medical University, Beijing 100038, China;Department of Infection Control, Beijing Miyun District Hospital, Beijing 101599, China;Department of Healthcare-associated Infection Management, Beijing Second Hospital, Beijing 100031, China)
出处
《中国感染控制杂志》
CAS
CSCD
北大核心
2022年第1期1-7,共7页
Chinese Journal of Infection Control
基金
首都卫生发展科研项目(首发2021-1G-4071)。
