\n\n
肺功能检查包括通气功能、换气功能、呼吸调节功能及肺循环功能等。
\n\n一般会吸入沙丁胺醇气雾剂 15~30 分钟后再检测 FEV1,如果与基础值相比 FEV1 升高 12% 同时改善数值大于 200 毫升即可判断支气管扩张试验阳性,代表支气管扩张剂对阻塞的气道有舒张作用。
\n\n所有的测量值 (Act 一栏) 都是与个人正常预计值 (也就是 Pred 一栏) 比较,个人正常预计值根据个人年龄、性别、身高、体重等计算确定,在正常预计值的 80%~120% (Act/Pred%)属于正常范围。
\n\n肺功能可用于评价肺功能的损害程度和类型,了解病情的变化以及治疗效果,因此有必要定期检查肺功能用以评价疾病是否进展。
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