室间隔巨大缺损合并肺动脉高压，超声上不可能出现的征象是A．心室水平左至右分流速度明显增加B．右心室壁出现肥厚C．肺动脉瓣反流压差可大于25mmHg...

作者: rantiku 人气: - 评论: 0

问题室间隔巨大缺损合并肺动脉高压，超声上不可能出现的征象是

选项 A．心室水平左至右分流速度明显增加 B．右心室壁出现肥厚 C．肺动脉瓣反流压差可大于25mmHg D．三尖瓣反流压差可大于40mmHg E．右心声学造影时左心室显影

答案 A

解析

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