问题 单项选择题 A1/A2型题

下列关于腰椎穿刺术的描述,不正确的是()

A.术中注意患者的脊柱与床面保持平行,骨盆与床面保持垂直

B.一般选择腰椎第1~2间隙

C.穿刺部位皮肤软组织有感染者,禁忌腰穿

D.术后去枕平卧6小时

E.术后常见不良反应为头痛、恶心、呕吐或眩晕等

答案

参考答案:B

解析:腰椎穿刺术为神经系统疾病病人常用的诊疗技术。一般选择第3~4或第4~5腰椎间隙进行穿刺。术中患者体位为靠床沿侧卧、屈颈抱膝、脊柱前屈,使躯体呈"C"形,注意脊柱与床面要保持平行,骨盆与床面要保持垂直,以增大腰椎间隙,有利于穿刺。穿刺部位皮肤或皮下组织感染者,禁忌腰穿。术后协助患者去枕平卧6小时;患者有时会出现头痛、呕吐或眩晕,可能是低颅压所致。

阅读理解

阅读理解。

     America is a mobile society. Friendships between Americans can be close and real, yet disappear soon.

They don't feel hurt. If the same two people meet again, even years later, they pick up the friendship. This

can be quite difficult for us Chinese to understand. Friendships between us develop more slowly but may

become lifelong feelings, extending (延伸) deeply into both families.

     There is another difficult point for us to understand.Although Americans treat friends warmly in their

personal everyday lives, they don't show their politeness to them if it requires a great deal of time. But in

China, we are usually generous with our time. We, as hosts, will appear at an airport even in the middle

of the night to meet a friend. We may take day off from our work to act as guides to our friends: It is

opposite in America, Americans can not manage the time to do a great deal with a visitor outside their

daily plans. They will probably expect the visitors to get themselves from the airport to the hotels. And

they expect the visitors will phone them from there. Once the visitors arrive at their homes, the welcome

will be full, warm and real.

      For Americans, it is often considered more friendly to invite a friend to their homes than to restaurants,

except for business matters. Americans are ready to receive us foreigners at their homes, share their

holidays, and their home life. So accept their hospitality (好客) at home and enjoy your visit in America!

1. The underlined phrase "pick up" in Paragraph 1 may mean "_____". [ ]

A. keep out

B. give up

C. pay no attention to

D. continue

2. Which of the following is the typical (典型的) way of American hospitality? [ ]

A. Treating friends at home.

B. Taking days off to be with friends.

C. Meeting friends at the airport at midnight.

D. Sharing everything they have.

3. Which of the following statements is true according to the passage? [ ]

A. Americans are always generous with their time.

B. Americans don't feel hurt if their friendships disappear soon.

C. Chinese friendships develop more slowly but will never disappear.

D. Chinese friendships are more sincere than American friendships.

4. This passage is most probably written for _____.

A. American students

B. Chinese students

C. Chinese visitors to America

D. American visitors to China

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