引流袋更换频率对引流尿液细菌污染的影响

目的探讨引流袋更换频率对引流尿液细菌污染的影响。方法选择2007年2月至2008年11月我院重症监护室、神经内科、神经外科卧床留置导尿患者180例，随机分为3组，所有患者均使用密闭式引流袋。A组每天更换1次引流袋，共72例；B组每3d更换1次引流袋，共52例；C组每7d更换1次引流袋，共56例。分别于留置导尿后次日起按无菌操作技术隔天1次取尿液送尿细菌培养，连续留检5次。结果三组患者的尿培养致病菌阳性结果比较，差别有统计学意义（P〈0．01）；A、B组尿培养致病菌阳性结果比较，差别有高度统计学意义（P〈0．01）；B、C组尿培养致病菌阳性结果比较，差别有统计学意义（P〈0．01）；A、C组尿培养致病菌阳性结果比较，差别无统计学意义（P〉0．05）。结论引流袋更换频率影响引流尿液的细菌污染状况，应以每3d更换1次为宜。

Influence of Replacement Frequency of Drainage Bag on Bacterial Contamination of Urine Drainage

Objective To investigate the influence of replacement frequency of drainage bag on bacterial contamination of urine drainage.Methods A series of 180 hospitalized in-bed patients with indwelling catheter from the ICU,neurology department and neurosurgery department were randomly divided into three groups.All the patients were treated with closed type drainage bags.The drainage bags were replaced everyday in group A (n=72),once every three days in group B (n=52) and once every 7 days in group C(n=56),respecti...