问题 问答题 简答题

试述TIA的治疗。

答案

参考答案:

(1)病因治疗:控制卒中危险因素,如动脉粥样硬化、高血压、心脏病、糖尿病、高血脂、颈椎病等。消除微栓子来源和血流动力学障碍,戒除烟酒,坚持体育锻炼等。

(2)药物治疗:

①用阿司匹林、噻氯匹啶、氯吡格雷或双嘧达莫等抗血小板凝集。

②用肝素、低分子肝素、华发林抗凝。

③应用血管扩张药

④应用右旋糖酐40扩容。

⑤近期频繁发作的TIA可采用尿激酶。高纤维蛋白原血症可选用降纤药如巴曲酶、安克洛和蚓激酶等。⑥使用钙通道拮抗剂如尼莫地平、氟桂利嗪等,行脑保护治疗。

(3)手术治疗:脑动脉中、重度狭窄(50%~90%)者,可行颈动脉内膜切除术、血管成形术、血管内支架植入术。

阅读理解

阅读短文,选择正确答案。

     Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big, and they

can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草).

     The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the

pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly

touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses

the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.

     Why do plant do it ? Most plants get what they need from the sun , the air , and the ground. In some places,

the ground is very poor. It doesn't have all these important things, especially nitrogen (氮). Animal meat has a lot

of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get

the same idea!

1. The Venus flytrap is a kind of _______. [ ]

A. food

B. meat

C. plant

D. animal

2. The Venus flytrap grows in _______. [ ]

A. most parts of the world

B. some parts of Africa

C. wet parts of England

D. dry parts of the United States

3. From the passage, we learn that ________. [ ]

A. all plants can eat people

B. all plants can eat animals

C. some plants can eat people

D. some plants can eat animals

4. The underlined word "presses" probably means _______ in Chinese. [ ]

A. 关上

B. 挤压

C. 打开

D. 松开

5. Why do some plants eat animal meat? Because _______. [ ]

A. plants are dangerous to animals

B. animals are dangerous to plants

C. plants want to protect themselves against animals

D. plants want to get what they need from animal meat

单项选择题