Contamination of ultrasonic nebulization equipment with gram negative bacteria.
Contamination of ultrasonic nebulization equipment with gram negative bacteria.
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超声波雾化设备被革兰氏阴性菌污染。
DOI：
10.1001/archinte.1971.00310140056004
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发表时间：
1971
影响因子：
--
通讯作者：
F. Felton
中科院分区：
文献类型：
--
作者：
E. Rhoades;R. Ringrose;J. A. Mohr;L. Brooks;B. McKown;F. Felton
常规使用过程中超声雾化器（USN）的气溶胶采样显示，在每种情况下，革兰氏阴性菌均存在显著污染。将无菌的USN机暴露于携带有沙雷氏菌痰的患者，48小时后导致USN所有部分的沙雷氏菌大量生长。浓度为0.25%的乙酸在清洁严重污染的机器时无效，而2%的乙酸30分钟可使USN无菌。美国海军是危险的，因为它们含有水库，其中某些革兰氏阴性微生物繁殖迅速。医院必须有一个定期的充分清洁和定期监测系统，最好是对产生的气雾剂进行监测，以防止感染需要吸入治疗的病人。
Aerosol sampling of ultrasonic nebulizers (USN) during routine use revealed significant contamination by gram negative bacteria in each instance. Exposure of a sterile USN machine to a patient harboringSerratiain sputum resulted in heavy growth ofSerratiain all parts of the USN after 48 hours. Acetic acid in a concentration of 0.25% was not effective in cleaning heavily contaminated machines, whereas 2% acetic acid for 30 minutes rendered the USN bacteria free. The USN are hazardous insofar as they contain water reservoirs in which certain gram negative organisms multiply rapidly. Hospitals must have a regular system of adequate cleaning and regular surveillance, preferably of aerosols produced, in order to prevent infecting patients requiring inhalation therapy.