对室性心动过速描述错误的是() ["可出现融合波","QRS波增宽","可发展为心室颤动","右心室流出道室性心动过速发生的机制是触发活动","左后分支室性心动过速占特发性室性心动过速的大多数"]
某弱酸性药物的pKa是3.4,在血浆中的解离百分率约为() ["1%","10%","90%","99%","99.99%"]
某一心脏病患者有心衰,以下那些对确诊扩张型心肌病意义大:() ["二尖瓣收缩期杂音","超声诊断证明心室腔扩大,心脏弥漫性搏动减弱","室性早搏","X线心影普大","交替脉"]
用于治疗肥厚性鼻炎的硬化剂为()。 ["1%普鲁卡因","80%甘油","氯仿","地塞米松","以上都不是"]
急性心肌梗死出现无脉性室性心动过速时,治疗首选() ["利多卡因","胺碘酮","普鲁卡因胺","索他洛尔","电复律"]
异位妊娠概述