首页
登录
职称英语
[originaltext] The injury to the brain caused by a blow happens when the bra
[originaltext] The injury to the brain caused by a blow happens when the bra
游客
2023-06-29
68
管理
问题
The injury to the brain caused by a blow happens when the brain is shaken, often in a car crash or a fall or a strike to the head in sports. It can be mild, but doctors may order a CT scan to look for a more serious injury. Computed X-rays provide a detailed image of the brain.(23)But a recent study warned that more children than necessary are being exposed to radiation in this way. A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries.(24)They found that in many cases. the risk of developing cancer from the radiation outweighed the risk of a serious brain injury. The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under age two. The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is: normal mental activity, no swelling in the back of the head, no feeling of a broken bone in the skull, and no loss of consciousness for more than five seconds. Doctors should also consider how the child was injured and whether the parents say the child is acting normally.(25)For patients from two to eighteen, the guidelines are similar—except there should be no loss of consciousness, no vomiting and no severe headache.
23. What’s the new discovery about the CT scan?
24. What did the national team find after studying records from children with head injuries?
25. When can a child be given a CT scan?
选项
A、It doesn’t work as expected.
B、It can do harm to children.
C、It can find out serious injuries.
D、It can provide detailed image of the brain.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794246.html
相关试题推荐
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
[originaltext]Listeningtomusicisoneofthemostcommonwayswemanageo
[originaltext]Listeningtomusicisoneofthemostcommonwayswemanageo
[originaltext]M:Amelia,youseemverybusynow.ButIdohavesomethingtotel
[originaltext]M:Amelia,youseemverybusynow.ButIdohavesomethingtotel
[originaltext]M:Doyouwanttogooutfordinnertonight?W:Sure.Haveyougo
[originaltext]M:Doyouwanttogooutfordinnertonight?W:Sure.Haveyougo
[originaltext]W:Ifeellikeseeingamovietonight,butIjustcan’tdecidewh
[originaltext]W:Ifeellikeseeingamovietonight,butIjustcan’tdecidewh
随机试题
WhatdoesAlisonorder?[br]Wheredoesthewomansuggestthatthemangetchang
Thebusinesscycleiscomposedofmanyphasesandoneofthemistheexpansi
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
依据《实施工程建设强制性标准监督规定》的要求,工程建设中拟采用的新技术、新材料,
赵女士在妇科检查中发现宫颈重度糜烂,宫颈刮片细胞学检查为巴氏Ⅱ级,提示为A.正常
患者女性,60岁,慢性咳喘20年,剧烈咳嗽3天,无咳痰、咯血及发热,半小时前突发
下列雾化吸入常用药物中,起减轻呼吸道黏膜水肿,改善通气作用的是( )A.阿米卡
阿胶的炮制方法宜选用A.炒焦法 B.砂炒法 C.土炒法 D.麸炒法 E.
对于小儿脱水补液的正确方法应除外A.轻、中度脱水可口服补液 B.中、重度脱水应
承担民事责任的方式包括( )。A.停止侵害 B.罚款 C.返还财产 D.
最新回复
(
0
)