下列哪项肺功能检查对阻塞性肺气肿的诊断最有价值A.V-V曲线 B.肺活量 C.动脉血氧分压 D.残气量及残气量/肺总量(%) E.最大每分通气量(...

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问题下列哪项肺功能检查对阻塞性肺气肿的诊断最有价值

选项 A.V-V曲线 B.肺活量 C.动脉血氧分压 D.残气量及残气量/肺总量(%) E.最大每分通气量(MVV)

答案 D

解析阻塞性肺气肿时残气量及残气量与肺总量比值均明显升高。

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