孕妇,31岁,G2P1。现妊娠37周,因腹痛、阴道流血1h急诊入院。B超检查后提示为“胎盘早剥”。急诊护士应首先采取的护理措施是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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