问题
单项选择题 案例分析题
患者，女，63岁。胸痛1h后，突然昏倒，神志不清，血压测不出，心音消失，瞳孔散大，面色苍白，大动脉搏动消失，ECG示：室性自主节律，拟诊为心脏骤停。
成人胸外心脏按压有效的标志是（）
A.收缩压>60mmHg
B.舒张压>60mmHg
C.平均动脉压>80mmHg
D.收缩压>80mmHg
E.可闻及心音
答案
参考答案：D
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患者，女，63岁。胸痛1h后，突然昏倒，神志不清，血压测不出，心音消失，瞳孔散大，面色苍白，大动脉搏动消失，ECG示：室性自主节律，拟诊为心脏骤停。
成人胸外心脏按压有效的标志是（）
A.收缩压>60mmHg
B.舒张压>60mmHg
C.平均动脉压>80mmHg
D.收缩压>80mmHg
E.可闻及心音
参考答案：D
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