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【单选题】
患儿,6岁。因发热2天,伴呕吐、头痛来诊。查体:体温39.2°C,脉搏130次/分;诊,呼吸40次/分,血压95/55mmHg,心、肺、腹未见异常,布鲁津斯基征阳性,凯尔尼格征阳性,初步诊断为病毒性脑炎。护士遵医嘱给患儿冰帽物理降温,向患儿父母解释其主要目的是A.
降低大脑耗氧量
B.
增加脑部供氧
C.
维持出入量平衡
D.
预防脱水
E.
防止脑疝
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