问题 多项选择题 案例分析题

女性,61岁。慢性咳喘20年。近5年来动则气急,3d前"感冒"自服"感冒通"后热退,但气急、咳嗽加重,昨夜因失眠服地西泮(安定)后入睡,今晨家人见其呼之不应,送来急诊。体检见神志恍惚,呼吸浅速,频率28次/分,紫绀明显。两肺散在干湿啰音。提示:呼吸空气条件下动脉血气分析示pH7.40,PaCO210.6kPa(80mmHg),PaO25.3kPa(40mmHg)。

提示:患者入院后给予持续低流量吸氧2升/分。提问:强调低流量(浓度)氧疗是为了()

A.避免氧中毒

B.避免"吸收性"肺不张

C.避免CO2潴留加重

D.避免氧气浪费

E.利用氧离曲线特点在陡直部分增加少许氧分压即可使氧饱和度有较大幅度提高

F.缺氧时组织氧提取增加

G.氧离曲线右移、P50增加

H.缺氧时血红蛋白代偿性增加

I.缺氧时心输出量增加,氧输送量提高

答案

参考答案:C, E

阅读理解

A 2-year-od boy is being described as a hero after using Face Time to save his mother after she was badly hurt.

According to a report from KGUN, Laura was trying to stop a fight between two dogs when one of the dogs bit(咬) part of her middle finger almost completely off.

Laura tried to call 911 herself, but she said her hands were too badly hurt to make the call. “ I asked my daughters to call 911, and they’re four, and they were quite afraid to even touch the phone, because it was covered in my blood(血),” Laura told KGUN.

The mother continued to lose a lot of blood and thought she would go into a deep sleep—until her 2-year-old son Bentley came up with a dishcloth from the kitchen. After cleaning some of the bold off his mother’s iPhone, Bentley continued to use Face Time to call Laura’s friend Connie.

“All I could see was his little forehead. I said ‘Hi Bentley’ and it was quiet for a little bit. Then I heard Laura shouting,” Connie told KGUN.

Connie then called 911, and Bentley unlocked the door to let firefighters into the house.

Laura told KGUN she is very thankful for her little hero and has since taught all of her children how to call 911.

小题1:Laura was badly hurt when she was _______.

A.opening the door

B.cooking in the kitchen

C.making a phone call

D.trying to stop a dog fight小题2:Through Face Time _______ learned about the accident and called 911 at last.

A.Laura’s son

B.Laura’s daughter

C.Laura’s friend

D.Laura’s husband小题3:The passage is probably taken from _______.

A.a newspaper

B.a poster

C.a science magazine

D.a guidebook

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