干性支气管扩张是指() ["以干咳为主","仅有早晨咳嗽及咳痰","纤维支气管镜检见支气管黏膜干燥、萎缩","仅有反复咯血,一般无咳嗽、咳痰","病变局限于上叶"]
目前认为特发性血小板减少性紫癜的发病,大多属于下列因素有关:() ["自身免疫性反应","细菌感染","化学因素","物理因素","遗传因素"]
支气管扩张最有意义的体征是() ["局限性哮鸣音","局限性湿啰音","贫血貌","消瘦","杵状指"]
对于既往无心肺疾病,无呼吸困难,单侧性的闭合性气胸,积气量低于多少可以不抽气让其自行吸收() ["<100%","<80%","<60%","<40%","<20%"]
左下叶和舌段支气管扩张同时存在的原因是() ["两者支气管开口相邻,下叶感染累及舌叶","左下叶支气管引流差易感染","舌叶支气管受心脏压迫影响引流","支气管扩张可发生在多个肺叶","左舌叶支气管细长不易引流"]
患者男性,65岁,因下楼梯时不慎摔倒致右小腿闭合性骨折,你随救护车去现场,请你做闭合性骨折的急救处理。