问题 单项选择题 B型题

肾前性少尿表现为().

A.禁饮尿渗量<600mOsm/(kg·H2O)

B.禁饮尿渗量300mOsm/(kg·H2O)

C.一次性尿渗量>450mOsm/(kg·H2O)

D.一次性尿渗量<350mOsm/(kg·H2O)

E.禁饮尿渗量600~1000mOsm/(kg·H2O)

答案

参考答案:C

解析:5.肾浓缩功能正常时,尿渗量为600~1000mOsm/(kg·H2OO);等渗尿指尿渗量与血浆渗量相等,约为300mOsm/(kg·H2OO);一次性尿渗量可鉴别肾前性少尿和肾小管坏死导致的少尿,肾前性少尿,其肾小管的浓缩稀释功能正常,一次性尿渗量>450mOsm/(kg·H2OO);肾小管坏死,其浓缩稀释功能障碍,一次性尿渗量<350mOsm/(kg·H2OO);慢性间质性肾炎由于肾间质结构和功能受损,导致肾脏浓缩功能障碍,其尿渗量<600mOsm/(kg·H2OO)。

阅读理解

根据短文回答问题。

     Mr Brown looks worried these days. Something is wrong with John’s

head. He took the little boy to a hospital. The doctor looked over him and

said that the boy needed an operationor he would die. John’s mother is

often ill and she can’t work. John’s two sisters are at school. Sometimes

his family has little food to eat and Mr Brown has no money to pay for the

operation. 

      “Why not go and borrow some money from Mr Green?” said Mrs

Brown. “You helped him before.”

     Mr Green has much money. But he never helps anybody. So he has few

friends in the village and nobody likes him. Mr Brown was afraid that his

friends would know about it. So he went to the man’s house at night.

       “I want to ask you for some help, but can you keep a secret for me?”

     “Of course!”

     “My son needs an operation, Mr Green.” Said Mr Brown. “Or he will

die. Will you please lend me some money?”

     “Don’t worry, Mr Brown,” said the rich man. “I will take it as if  I

didn’t hear you!”

1.What’s Mr Brown afraid of ?

He is afraid that John________ ________.

2.How many people are there in John’s family?

There ________ ________.

3.Why can’t Mr Brown pay for the operation?

Because he is ________ _______.

4.Why did Mr Brown go to Mr Green’s house in the evening?

He was afraid that his friends would see ________ ________ ________ Mr

Green’s house.

5.What did Mr Green’s words mean?

Mr Green didn’t want to _______ _______money to Mr Brown.

选择题