灌肠的适应证是() ["A．便秘患儿","B．急腹症或胃肠道出血患儿","C．需肠镜检查的患儿","D．先天性巨结肠患儿手术前","E．高热患儿"]
失血早期，出现代偿性血管收缩的主要机制是() ["A．儿茶酚胺的作用","B．创伤","C．饱胃","D．主动脉弓和颈动脉窦压力感受器反射作用","E．局部代谢产物"]
新生儿需使用暖箱的体重指标是() ["A．1000g","B．1500g","C．2000g","D．2500g","E．2500g以上"]
创伤后剧痛的危害有() ["A．影响康复","B．增加并发症率","C．减低肺通气量","D．增加肺部感染","E．增加心肌耗氧"]
测量体重的要求应除外() ["A．晨起空腹排尿后进行","B．早餐后进行","C．午餐后进行","D．进食1小时后进行","E．午餐前进行"]
背景:
