最近在翻译美国医疗机构环境感染控制指南的空调通风系统的部分内容,发现该指南并不提倡建设正负压转换房间,而国内新建的洁净手术部一般均有一个万级的正负压转换手术室,是否是国情不同呢?
Older health-care facilities may have variable pressure rooms (i.e., rooms in which the ventilation can be manually switched between positive and negative pressure). These rooms are no longer permitted in the construction of new facilities or in renovated areas of the facility, and their use in existing facilities has been discouraged because of difficulties in assuring the proper pressure differential, especially for the negative pressure setting, and because of the potential for error associated with switching the pressure differentials for the room. Continued use of existing variable pressure rooms depends on a partnership between engineering and infection control
.旧的保健机构可设置压力转换房间(即在该房间的通风系统可通过手动切换成正压和负压)。这些房间在新建机构和局部翻修时将不被允许建设,不鼓励使用现有正负压转换房间,因为很难保证正确的压力差,特别是负压设置,手动改变室内压力差存在潜在的错误。继续使用现有的压力转换房间取决于工程与感染控制的关系。