男,26岁,6小时前急起气促、发绀,血压从16.0111.2kPa(120/84mmHg)下降至8.0/6.1kPa(60/46mmHg),颈静脉怒张,心...

作者: rantiku 人气: - 评论: 0
问题 男,26岁,6小时前急起气促、发绀,血压从16.0111.2kPa(120/84mmHg)下降至8.0/6.1kPa(60/46mmHg),颈静脉怒张,心音减弱,肺无啰音。 下列何项发现有助诊断
选项 A.奇脉 B.心界增大 C.心房颤动 D.端坐呼吸 E.肝大压痛,肝颈静脉回流征阳性
答案 A
解析 奇脉对急性心脏压塞有诊断价值心包积液时心电图可见除aVR以外的所有常规导联中ST段弓背向下型抬高,QRS低电压,大量积液时可见电交替心包穿刺抽液可解除心脏压塞症状

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