问题 问答题

低血容量性休克补充血容量时为何要遵循“晶胶同输”的原则

答案

参考答案:答:低血容量性休克时,输全血只能补充失血量,而不能补充功能性细胞外液,微循环将不能改善,因而无法迅速改善细胞的灌流;因此主张采用晶体液和胶体液同时输注进行复苏。一般晶胶体的比例为2:1或3:1。晶体液以平衡盐液为好,因其电解质组分与血浆相似,不易导致电解质紊乱,同时可补充血管外间隙的细胞外液丢失,适度的血液稀释可降低血液的黏滞度和外周阻力,疏通微循环同时也可使血红蛋白氧解离曲线右移,有利于红细胞的释氧。

单项选择题

This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.
The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.
Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.
My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.
(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.
We’re not (20) , but I guess we must look quite like each other.

A.other
B.another
C.the other
D.one other

单项选择题