[名词解释] 视神经萎缩

急性肾功能衰竭少尿无尿早期主要死亡原因是() ["A．低钙血症","B．低钠血症","C．高钾血症","D．低钾血症","E．高镁血症"] 前部缺血性视神经病变 尿毒症伴高血钾时，最有效的治疗方法是() ["A．输入小苏打水","B．输入钙剂","C．输入高渗葡萄糖加胰岛素","D．血液透析","E．口服钠型阳离子交换树脂"] 原发性视神经萎缩 下列哪项不是甲亢的临床表现() ["A．骨痛","B．大便次数增加或腹泻","C．周围血管征","D．月经量增多","E．肌肉萎缩"] 视神经萎缩