试题与答案

关于慢性阻塞性肺疾病(COPD)的严重程度分级正确的是() A.Ⅳ级FEV1/FVC

题型:单项选择题 A1/A2型题

题目:

关于慢性阻塞性肺疾病(COPD)的严重程度分级正确的是()

A.Ⅳ级FEV1/FVC<70%,FEV1<30%预计值或FEV1<50%预计值,伴有慢性呼吸衰竭

B.Ⅲ级FEV1/FVC<70%,30%≤FEV1≤50%预计值

C.Ⅱ级FEV1/FVC<70%,50%≤FEV1≤80%预计值

D.Ⅰ级FEV1/FVC<70%,FEV1>80%预计值

E.0级FEV1/FVC<70%,有罹患COPD的危险因素

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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