下列各项检查对诊断慢性阻塞性肺疾病最有意义的是A、血气分析PaO50mmHgB、肺功能第一秒用力呼气量/用力肺活量

作者: rantiku 人气: - 评论: 0
问题 下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
选项 A、血气分析PaO<60mmHg,PaCO>50mmHg B、肺功能第一秒用力呼气量/用力肺活量<60%,最大肺活量实测值/预计值<60% C、心电图呈低电压 D、胸部X线示肺透亮度增加,肋间隙增宽 E、体格检查有桶状胸、紫绀
答案 B
解析

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