问题 单项选择题

男,64岁。胆结石术后5天突发呼吸困难l小时,有COPD史20余年。查体:BP110/80mmHg,端坐呼吸,烦躁不安,大汗,口唇发绀,双肺可闻及少量干湿啰音,心率120次/分。该患者呼吸困难最可能的原因是并发()

A.急性呼吸窘迫综合征

B.急性左心衰竭

C.继发肺部感染

D.自发性气胸

E.右心衰竭

答案

参考答案:A

解析:ALI/ARDS多于原发病起病后5天内发生,约半数发生于24小时内。除原发病的相应症状和体征外,最早出现的症状是呼吸加快,并呈进行性加重的呼吸困难、发绀,常伴有烦躁、焦虑、出汗等。本题中老年男性COPD患者,腹部手术后5天突然出现呼吸困难、端坐呼吸、烦躁不安、口唇发绀;无发热,无咳粉红色泡沫痰,无肺部呼吸音减弱、无右心衰体征。考虑存在急性呼吸窘迫综合征。

阅读理解

阅读短文,选择正确答案。

    Indianapolis is the capital and largest city of Indiana, USA. With a population of 774000, it is one of the largest

cities in the world that cannot be reached by water. However, Indianapolis is a city through which many

railways, roads, buses, and planes pass. There are many factories that make cars, farm tools and electrical

things. These factories cause little pollution for the city. Bulter University, well known for engineering, and

the law and medical schools of Indiana University are in the city center. Nearby is the Indianapolis race course,

where the nation's most famous car race is held every year on May 30th. 

    If you visit Indianapolis, you will be able to find your way around easily because most of the streets cross

each other like a chessboard. In the center of the city, called the circle, stands the Soldier's and Sailor's

Monument (纪念碑), 100 hundred meters high. Also in the center there are many buildings made of famous

Indianapolis stone, which makes them white in color.

1. You can not travel to Indianapolis by _______. [ ]

A. boat

B. bike

C. car

D. train

2. What is Indianapolis best known for? ________. [ ]

A. Its school and libraries

B. Its yearly motor race

C. Its universities and medical schools

D. Its Soldiers' and Sailors' Monument

3. It is easy for a stranger to go about in the city because ________. [ ]

A. most of the buildings are in the center of the city

B. there are many different ways of traveling there

C. the buildings are very close to each other

D. the city is planned in squares

4. Many buildings in Indianapolis are white because ________. [ ]

A. they are painted every year

B. the Indiana people keep them clean

C. they are made of special stone

D. there is little pollution from factories

单项选择题 B1型题