血细胞比容是指血细胞() ["A.占全血容积的百分比","B.占全血质量的百分比","C.与血清容积之比","D.与血管容积之比","E.与血浆容积之比"]
先天性膈疝在以下各项中,哪种最常见() ["A.主动脉裂孔疝","B.食管裂孔疝","C.腔静脉裂孔疝","D.Bochdalek孔疝","E.Morgagni孔疝"]
左向右分流型先天性心脏病()右向左分流型先天性心脏病()无分流型先天性心脏病() ["A.室间隔缺损","B.法洛四联症","C.肺动脉狭窄","D.病毒性心肌炎","E.感染性心内膜炎"]
出现以下体征时考虑为上述哪一种心脏病? ["胸骨左缘第二肋间粗糙响亮的连续性机器样杂音,P2亢进()胸骨左缘第2~3肋间Ⅱ~Ⅲ级收缩期喷射性杂音,P2亢进,固定分裂()胸骨左缘第3~4肋间Ⅲ~Ⅳ收缩期杂音,P2亢进()胸骨左缘第2~4肋间Ⅱ~Ⅲ级收缩期喷射性杂音,P2减弱()A.房间隔缺损","B.室间隔缺损","C.法洛四联症","D.动脉导管未闭","E.病毒性心肌炎"]
下列除哪项外,均为肋骨骨折的继发征象() ["A.骨折线","B.气胸","C.液气胸","D.皮下气肿","E.纵隔气肿"]
右心房血氧含量明显地比腔静脉高()主动脉逆行造影为主、肺动脉同时显影()X线呈现双肺有网状肺纹理()