动脉导管未闭,见对比剂右向左分流,表明有A.室壁瘤B.心肌肥厚C.肺动脉高压D.冠状动脉狭窄E.主动脉瓣关闭不全

作者: rantiku 人气: - 评论: 0
问题 动脉导管未闭,见对比剂右向左分流,表明有
选项 A.室壁瘤 B.心肌肥厚 C.肺动脉高压 D.冠状动脉狭窄 E.主动脉瓣关闭不全
答案 C
解析 :动脉导管未闭通常情况下,由于主动脉压力高于肺动脉,产生由左向右分流;当肺动脉高压压力超过主动脉时,出现右向左分流,临床上出现发绀。

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