下面哪项不是老年呼吸功能降低的主要原因() ["A．肺弹性回缩力下降","B．胸壁僵硬","C．呼吸肌力变弱","D．肺防御功能下降","E．闭合气量增加"]
关于老年人的呼吸生理改变以下哪种说法是错误的() ["A．通气功能降低","B．肺活量降低","C．气道阻力降低","D．残气量增加","E．时间肺活量降低"]
背景资料
法洛四联症最容易产生的并发症是() ["A．感染性心内膜炎","B．支气管肺炎","C．脑栓塞","D．心力衰竭","E．脑膜炎"]
小儿腹部大手术每小时失液量()小于10kg小儿每小时液体维持量()小儿一般小手术每小时失液量() ["A．体重(kg)×15(ml)","B．体重(kg)×2+20","C．体重(kg)×4","D．体重(kg)+40","E．体重(kg)×2"]
背景资料
