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【单选题】
患者男,72岁。因急性前壁心肌梗死收入院。入院后已行面罩吸氧,建立静脉通道,心电监护示频发、多源性室性期前收缩。护士在床边准备抢救用品,最重要的是
A.
血氧饱和度仪
B.
气管切开包
C.
吸痰器
D.
除颤仪
E.
呼吸气囊
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