上消化道出血的临床表现最主要取决于() ["A．病变部位的高低","B．出血量与出血速度","C．出血前患者全身情况","D．病变性质的良恶","E．出血时患者的抵抗力"]
处理上消化道大出血不妥的是() ["A．暂时禁食","B．快速输液","C．紧急内镜检查","D．三腔二囊管压迫止血","E．静脉滴注止血药"]
提示急性出血坏死型胰腺炎的指标是() ["A．低血钙","B．低血糖","C．低血钠","D．白细胞计数显著增高","E．血清淀粉酶显著增高"]
上消化道大出血患者错误的护理措施是() ["A．平卧位、头偏向一侧","B．严密观察出血量和色","C．尽量鼓励患者起床排便","D．绝对卧床","E．大量呕血者须暂禁食"]
急性腹泻患者一般不会出现的护理诊断是() ["A．舒适的改变","B．体液过多","C．腹泻","D．体液不足","E．活动无耐力"]
下述情况下外周血红细胞数有什么改变
急性失血早期()频繁呕吐、腹泻()妊娠后期()真性红细胞增多症()再生障碍性贫血()
