问题 单项选择题 A1/A2型题

患者,心悸气短10年,近1年加重。查体:心尖区可闻及舒张期隆隆样杂音,心律不齐。M型超声心动图示:二尖瓣前叶曲线EF斜率降低,A峰消失,后叶向前运动,瓣叶增厚。诊断考虑为()

A.左房黏液瘤

B.肥厚型梗阻性心肌病

C.主动脉瓣关闭不全

D.风心病,二尖瓣狭窄

E.室间隔缺损

答案

参考答案:D

解析:二尖瓣狭窄的心脏体征:①心尖搏动正常或不明显;②心尖区可闻第一心音亢进和开瓣音,提示前叶柔顺、活动度好;如瓣叶钙化僵硬,则第一心音减弱,开瓣音消失;③心尖区有低调的隆隆样舒张中晚期杂音,局限,不传导。常可触及舒张期震颤。超声心动图为明确和量化诊断二尖瓣狭窄的可靠方法。M型示二尖瓣城墙样改变(EF斜率降低,A峰消失),后叶向前移动及瓣叶增厚。

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     I've never been late for school, but yesterday I came very close. My alarm clock didn't   1  , and by the time I woke
up, my father had already   2   the bathroom and I had to wait for him  3  . I had to really rush .I took a   4  shower, had
some breakfast, and then ran off  5  the bus stop.  6  , by the time I  7  there, the bus had already left .I started walking,
but I knew I couldn't get to school  8  .   Luckily,  my friend Tony and his dad came by in his dad's car and they gave
me a  9  . When I got to school, the final bell  10  . I only just made it to my class.
( )1.A. break down  
( )2.A. gone into    
( )3.A. get out      
( )4.A. quick        
( )5.A. in          
( )6.A. Luckily      
( )7.A. arrived at  
( )8.A. on time      
( )9.A. bike        
( )10.A.was ringing  
B. go off    
B. go into  
B. come out  
B. quickly  
B. at        
B. Unluckily
B. reaching  
B. at times  
B. car      
B. ringing  
C. went off    
C. left        
C. to leave    
C. slow        
C. to          
C. Unfortunate
C. got to      
C. sometimes  
C. ride        
C. rang        
D. get off        
D. came into      
D. to come out    
D. slowly        
D. into          
D. Happily        
D. got            
D. on times      
D. drive          
D. rung          
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