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目的:了解内科系统医院感染现状,为加强防控提供依据.方法:采用横断面调查方法,对2011年9月28日我院内科系统住院患者进行调查.结果:共调查880例患者,医院感染现患率为4.9﹪,感染例次率为5.1﹪,主要集中在内科监护室、神经内科、干部病房和呼吸内科.医院感染和社区感染以均下呼吸道感染为主(分别为68.9﹪和61.3﹪).日抗菌药物使用率为39.7﹪,细菌培养送检率为77.8﹪.结论:我院感控工作仍存在不足,必须加强重点部门及重点部位的监控.“,”Objective To investigate the prevalence rate of nosocomial infection (NI) in internal medicine departments and provide evidence for prevention and control. Methods A cross-sectional survey was carried out to investigate the patients in internal medicine departments of our hospital on 28th, September, 2011. Results A total of 880 patients were investigated. The prevalence rate of NI in internal medicine departments was 4.9﹪ and case prevalence rate was 5.1﹪. The main NI departments were ICU of internal medicine, neurology, cadre ward, and respiratory. The main NI and social infection sites were both in upper respiratory tract(68.9﹪ and 61.3﹪, respectively). The daily use rate of antibiotics was 39.7﹪, and the delivering rate of bacterial was 77.8﹪. Conclusion There were stil lots of problems for our work of NI controling. We had to strength the management of NI in the key departments and in the main part.