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问题 单项选择题

男，51岁，重症肺炎患者，入院后次日病情加重，突发持续性呼吸急促，发绀，伴烦躁，呼吸频率38次/分，心率108次/分，律齐，两肺可闻及湿啰音。血气分析： pH 7.34，PaO250mmHg，PaCO230mmHg。胸片示两中下肺纹理增多模糊，斑片状阴影，心胸比例正常

最可能的诊断是

A．肺梗死

B．急性左心衰竭

C．自发性气胸

D．肺不张

E．急性呼吸窘迫综合征(ARDS)

答案

参考答案：E

填空题
A:  66 
B: Hi, Billy
A:  67 
B: I have been to the shops, Look, I bought this hat.
A: It’s pretty. 68
B: No, I didn’t.
A: Where has she gone?
B:  69  she will be back at about five o’clock.
A:   70  she has been to the park every day this week.
B: That’s because she plays tennis there.
A. To the park again?
B. Hello!
C. Did you go with Jenny?
D. She has gone to the park.
E. Where have you been?
查看答案
单项选择题

刘女士患二尖瓣狭窄，若出现与充血有关的典型症状，最可能发生在

A．主动脉

B．右心房

C．右心室

D．肺循环

E．左心室
查看答案