[名词解释] 充血性心力衰竭

劳力性呼吸困难 符合糖尿病酮症酸中毒的实验室检查是() ["A．血钾不变","B．二氧化碳结合力下降","C．血钠升高","D．血白细胞下降","E．血尿素氮降低"] 心律失常 糖尿病酸中毒患者，小剂量胰岛素滴注及大量生理盐水输液最常见的副作用是() ["A．低血钠","B．低血糖","C．低血钙","D．脑水肿","E．低血钾"] 阵发性夜间呼吸困难 充血性心力衰竭