问题 单项选择题 A1/A2型题

成年男性因胃癌行胃癌根治术,术中出血约600ml,心率92次/分,呼吸21次/分,血压13.1/8.0kpa(98/60mmHg),血红蛋白105g/L。下列哪种做法是正确的()。

A.输注晶体液补充血容量,原则上不输血

B.输全血600ml补充丢失的失血量

C.输血浆和红细胞各300ml代替丢失的全血.

D.输红细胞悬液600ml,不必输注全血

E.输血浆600ml补充血容量,不必输注红细胞

答案

参考答案:A

解析:

对于急性失血治疗方案:①失血量不超过血容量的20%,Hb>100g/L者,应输注晶体液补充血容量,原则上不输血;②失血量超过血容量的20%、Hb<100g/L者,除了输注晶体液或并用胶体液扩容外,还要适当输注红细胞;③失血量过大、仍有持续活动性出血的休克患者,除了输注晶体液、胶体液和红细胞,亦可输部分全血。根据2000年卫生部输血指南建议:Hb>100g/L不需要输血;Hb<70g/L可输入浓缩红细胞;Hb为70~100g/L时,应根据患者的具体情况来决定是否输血。对于可输可不输的患者应尽量不输。

单项选择题

Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is (1) only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, even (2) . You have to take a commuter train any morning or evening to (3) the truth of this.

Serious-looking businessmen and women sit reading their newspapers or dozing in a corner; hardly anybody talks, since to do so would be considered quite (4) .

(5) , there is an unwritten but clearly understood code of behavior which, once broken, makes the offender immediately the object of (6) .

It has been known as a fact that a British has a (7) for the discussion of their weather and that, if given a chance, he will talk about it (8) .

Some people argue that it is because the British weather seldom (9) forecast and hence becomes a source of interest and (10) to everyone.

This may be so. (11) a British cannot have much (12) in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong (13) a cloud over the Atlantic brings rainy weather to all districts! The man in the street seems to be as accurate — or as inaccurate — as the weathermen in his (14) .

Foreigners may be surprised at the number of references (15) weather that the British (16) to each other in the course of a single day. Very often conversational greetings are (17) by comments on the weather. “Nice day, isn’t it” “Beautiful!” may well be heard instead of “Good morning, how are you” Although the foreigner may consider this exaggerated and comic, it is (18) .pointing out that it could be used to his advantage. If he wants to start a conversation with a British but is at a loss to know (19) to begin, he could do well to mention the state of the weather. It is a safe subject which will (20) an answer from even the most reserved of the British.

20()

A.stimulate

B.constitute

C.furnish

D.provoke

单项选择题 A2型题