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2018考试吧胸心外科主治医师强化试题(8)

考试吧整理了“2018年胸心外科主治医师考试重要信息”,以便考生顺利备考,更多内容请关注“万题库卫生资格”微信,或考试吧卫生资格考试频道。

>>>2018考试吧胸心外科主治医师强化试题汇总

  1.关于房间隔缺损修补术,下述哪项不恰当

  A.修补上腔型缺损时应识别是否合并右肺静脉畸形引流

  B.缝合下缘时应注意识别下腔静脉瓣

  C.筛状缺损应先剪成单孔再修补

  D.闭合缺损前应注意膨肺排气

  E.停止体外循环后输液不能过快以防止发生右心衰和急性肺水肿

  正确答案:E 解题思路:补房缺如为多个筛状缺损,则应剪成单孔再修补。由于长期左向右分流,左心发育较差停止体外循环后输血输液不应过快,避免左心室容量负荷过重。

  2.关于法洛四联症矫治术,下述哪项不恰当

  A.疏通右室流出道

  B.修补室间隔缺损

  C.必须有足够的右心室末容量

  D.必需两侧肺动脉发育良好

  E.一般在中度低温(25~26℃)体外循环下施行

  正确答案:C 解题思路:左心室发育良好,有足够的舒张末容量是法洛四联症矫治的必备条件。

  3.下列哪项不是单纯室间隔缺损修补术的手术入路

  A.肺动脉入路

  B.右心房入路

  C.主动脉入路

  D.右心室入路

  E.左心室入路

  正确答案:C 解题思路:动脉外,左、右心房,左、右心室都可作为修补室缺之入路,根据室缺部位、大小不同而选择。

  4.关于先天性主动脉狭窄,下列哪一项叙述是错误的

  A.指发生于升主动脉的先天性主动脉缩窄

  B.可能与动脉导管纤维化闭锁过程有关

  C.第3~7对肋间动脉建立粗大侧支循环

  D.导管前型伴有动脉导管常有下半身发绀,上半身无发绀

  E.下肢血压低于上肢,压力阶差>20mmHg

  正确答案:A 解题思路:主动脉缩窄较常出现于降主动脉起始部,但并不多见于升主动脉。

  5.有关肺动脉瓣狭窄,哪项描述是不恰当的

  A.肺动脉主干多出现"狭窄后扩张"

  B.由于肺动脉瓣狭窄,右心室压力始终高于左心室压力

  C.肺动脉瓣狭窄可合并肺动脉瓣二瓣化

  D.可合并肺动脉狭窄或右室漏斗部狭窄

  E.右室漏斗部可出现继发性肌性肥厚狭窄

  正确答案:B

  6.男,18岁。劳累后心悸、气短。查体发现胸骨左缘Ⅲ/6收缩期喷射样杂音,伴震颤,肺动脉第2音减弱。ECG提示电轴右偏,右室肥厚;X线摄片示肺血减少,右心增大。则其初步诊断可能为

  A.二尖瓣狭窄

  B.房间隔缺损

  C.动脉导管未闭

  D.二尖瓣关闭不全

  E.肺动脉瓣狭窄

  正确答案:E

  7.男,出生后4个月出现气促。急诊查体:两肺湿罗音,胸骨左缘2~3肋间收缩期杂音,上肢动脉搏动强,股动脉搏动触及不清,最可能的诊断是

  A.室间隔缺损

  B.房间隔缺损

  C.主动脉缩窄

  D.动脉导管未闭

  E.法洛四联症

  正确答案:C

  8.女,5个月龄。因发现心脏杂音5天来诊。查体:发育营养良好,无发绀,胸骨左缘3、4肋间可闻Ⅲ/6级收缩期杂音,无震颤。超声心动图检查示:各房室内径正常,室间隔膜部回声中断3mm,可探及左向右过隔血流,诊断:室间隔缺损。根据上述检查,给家长的建议应是

  A.介入治疗

  B.立即手术

  C.不必治疗

  D.服药治疗

  E.随诊观察病情进展

  正确答案:E

  9.男,7岁。自幼气促,剧烈活动后可出现晕厥,听诊于胸骨左缘第2肋间可闻及粗糙喷射样收缩期杂音。为明确诊断,最有价值的检查是

  A.血气分析

  B.X线检查

  C.彩色多普勒超声心动图检查

  D.ECG检查

  E.血生化检查

  正确答案:C

  10.男,5岁。以渐发劳累气促为主诉。查体未见发绀,发现颈静脉怒张、肝脏肿大,胸骨左缘第二、三肋间可及Ⅳ/6粗糙收缩期杂音。最可能的诊断是

  A.动脉导管未闭

  B.室间隔缺损

  C.房间隔缺损

  D.右室流出道梗阻

  E.法洛四联症

  正确答案:D

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