首页
登录
职称英语
[originaltext] The injury to the brain caused by a blow happens when the brai
[originaltext] The injury to the brain caused by a blow happens when the brai
游客
2024-01-21
43
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、When a child aged two has no broken bones in the skull.
B、When a child aged ten lose consciousness.
C、When a child aged one has no serious headache.
D、When a child aged nine has normal mental activity.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3383041.html
相关试题推荐
[originaltext]Somediseasesareinfectious—likecoldsandfluButwhatabou
[originaltext]Somediseasesareinfectious—likecoldsandfluButwhatabou
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]I’mgladtoseesomanyofyouhere.We’vebecomereallyalar
[originaltext]I’mgladtoseesomanyofyouhere.We’vebecomereallyalar
[originaltext]W:Hello?M:Hi,Jessica?W:Oh,hi,Mike.What’sup?M:Sorryto
[originaltext]W:Hello?M:Hi,Jessica?W:Oh,hi,Mike.What’sup?M:Sorryto
[originaltext]Parentsarebeingurgedtodownloadafreeappwhichtellsth
随机试题
Weexperiencedifferentformsofthesun’senergyeveryday.Thesunisthe
______allourkindnesstohelpher,Sararefusedtolisten.A、AtB、InC、ForD、On
不便于benotconvenientfor
[originaltext]M:Hello,Nancy.Iknowyouareoneofthewomentaxidriversin
在美术教材的呈现方式中,下列说法正确的是( )。A.美术教材以教科书为主,画册
吗啡的氧化产物是A.吗啡酮B.吗啡喃C.去甲吗啡D.阿扑吗啡E.伪吗啡(双吗啡)
城市燃气管网按不同的压力级制分类,分为一级管网系统、二级管网系统、三级管网系统和
经项目监理机构对竣工资料及实物全面检查、验收合格后,由( )签署单位工程竣工验
关于悬臂梁端部最大位移的说法,正确的是( )A.与材料的弹性模量成正比 B.
在非金属管中,有较好的热稳定性,能导热,线膨胀系数小,不污染介质,并能保证产品纯
最新回复
(
0
)