第22题: [单项选择]典型慢性肾功能不全时的水、电解质紊乱是() A. 代谢性酸中毒、低血钙、高血磷、高血钾 B. 代谢性酸中毒、低血钙、低血磷、高血钾 C. 代谢性酸中毒、低血钙、低血磷、高血钠 D. 代谢性碱中毒、高血钙、低血磷、低血钠 E. 代谢性碱中毒、高血钙、高血磷、高血钾 参考答案:A 答案解析:慢性肾功能不全引起水、电解质和酸碱平衡的紊乱主要表现为钠、水平衡失调,水肿时有稀释性低钠,钾的平衡失调主要是高血钾。肾功能不全时,代谢产物如磷酸、硫酸等因排泄障碍而潴留,肾小管泌氢功能障碍造成阴离子间
A. Parents are unhappy with their growing children. B. Parents have suitable ways to talk with their teenagers. C. Parents should be patients with their silent teenagers. D. Parents should try to understand their teenagers. 参考答案:D 答案解析:主旨题。根据本文最后一句“Another thing parents should remember is that to be a friend with them”,父母应更多理解孩子,可以判断[