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目的研究患者进行长期吸氧使用一次性氧气湿化液细菌污染的情况。方法选取呼吸科感染和非感染且长期吸氧患者120例,对吸氧第1~7天进行采样并监测一次性氧气湿化液的细菌污染情况。结果一次性氧气湿化液在不同时间段细菌培养阳性率比较,差异有统计学意义(P<0.05)。120例患者,840份标本,其中阳性标本共33份,占全部的3.93%,有呼吸系统感染的患者在7 d内使用一次性氧气湿化液污染率为7.62%。结论有呼吸系统感染且需长期吸氧患者一次性氧气湿化液4 d后易被感染,>4 d应及时更换氧气湿化液;呼吸道无感染患者使用氧气湿化液感染机会少,一次性湿化液可以使用7 d。对一次性氧气湿化液的监管力度加强,能够大大降低院内感染率,值得临床推广。
Objective To study the long-term oxygen inhalation patients using bacterial contamination of oxygen humidification fluid. Methods A total of 120 patients with respiratory infections and noninfected and long-term oxygen inhalation were enrolled in this study. Sampling was performed on the 1st to 7th days of oxygen inhalation and bacterial contamination of the disposable oxygen humidification solution was monitored. Results One-time oxygen humidification fluid at different time intervals positive rate of bacterial culture, the difference was statistically significant (P <0.05). 120 patients, 840 samples, of which a total of 33 positive samples, accounting for 3.93% of the total, with respiratory infections in patients within 7 days using one-time oxygen humidification fluid contamination rate of 7.62%. Conclusion Patients with respiratory infection who need long-term oxygen inhalation are susceptible to infection after being exposed to oxygen for 4 days. Oxygen wetting fluid should be replaced immediately after> 4 days. Patients with no respiratory infection should have less chance of using oxygen humidification fluid, Wetting fluid can be used for 7 d. On the one-time supervision of oxygen humidification liquid to strengthen, can greatly reduce the nosocomial infection rate, worthy of clinical promotion.