Method Asthmatic patients having used MDI and turbuhaler for sometime were investigated,who demonstrated the using of MDI or turbuhaler 2-3 times,just as the way they used at home or community.

• 方法:调查已经使用过一定时间MDI和都保的哮喘患者,让患者按照在家庭、社区的使用情况,演示2或3次MDI或都保吸入的过程。仔细观察,找出其中存在的问题并进行记录。