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【单选题】
病人,男, 58 岁。昏迷待查入院, CT 检查示脑干出血。在为其行心电监护时出现心搏骤停,医生立即对其进行胸外按压。关于外按压的陈述正确的是
A.
查看心电监护,停止胸外按压
B.
胸外按压时胸骨下陷 5cm
C.
按压频率每分钟 100-120 次
D.
按压与通气之比为 15 : 2
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