患儿,3岁,不慎溺水,检查发现面部发绀,意识丧失,自主呼吸停止,颈动脉搏动消失。护士实施抢救时首先采取的措施是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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