问题 问答题 简答题

试述小脑出血的临床表现有哪些?

答案

参考答案:

小脑出血占脑出血的10%。主要因小脑上动脉、小脑前下动脉或小脑后下动脉破裂所致由于出血量及部位不同,其临床表现分为三种类型:①暴发型:为一侧小脑半球或蚓部较大量出血,一般出血量在15ml以上。血肿迅速地压向脑干腹侧,引起高颅压导致枕骨大孔疝而死亡。患者表现为突然头痛、呕吐,迅速出现昏迷,常在发病后1~2天内死于脑疝。②一般型:出血量为5~15 ml,病情发展相对缓慢,不少患者可存活。除了出现头痛、呕吐、眩晕、言语障碍外,可有明显的小脑及脑干受损表现,如瞳孔缩小、眼震、眼球活动障碍、展神经麻痹、角膜反射消失、周围性面瘫、交叉性肢体瘫痪和感觉障碍、同侧肢体共济失调。病情加重者可出现昏迷及脑疝而致死。③良性型:出血量在5ml以内。患者均能存活。大多数仅表现为眩晕、眼震、复视和(或)周围性面瘫。因此,在进行脑CT检查之前,容易被漏诊。

完形填空

Across the world, mobile phones are very popular with young people. They think that the phones are more than a means of communication — having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has worried some health professionals. Some doctors are concerned that in the future many people will suffer from health problems because of the use of mobile phones. But mobile phone companies say that there is no proof that mobile phones are bad for health.

On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissue (组织) of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at a young age due to the fact that he couldn’t remember even simple tasks. The man had been talking on his mobile phone for about six hours a day for a couple of years. His family doctor blamed his mobile phone use.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it is better to use mobile phones less often. Use a normal phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. So, for now, it is wise not to use your mobile phone too often.

小题1:Why do young people buy mobile phones according to the passage?

(No more than 11 words) (2 marks)

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小题2:Why did the salesman mentioned in the passage retire young?

(No more than 7 words) (2 marks)

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小题3:What do the manufacturing companies think of the safety issue of mobile phones?

(No more than 14 words) (3 marks)

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小题4:What’s the purpose of the author’s writing this passage?   (No more than 11 words) (3 marks)                                            

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