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
2024-01-27
10
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/3399418.html
相关试题推荐
[originaltext](22)Skinisthelargestorganofthebody.Itisthebody’sf
[originaltext](22)Skinisthelargestorganofthebody.Itisthebody’sf
[originaltext]TheNationalAssociationofCollegesandEmployerscollectsin
[originaltext]TheNationalAssociationofCollegesandEmployerscollectsin
[originaltext]Fromtheancienttimes,marriagehasbeenanimportantpartof
[originaltext]Theinjurytothebraincausedbyablowhappenswhenthebrai
[originaltext]Theinjurytothebraincausedbyablowhappenswhenthebrai
[originaltext]AmandaLaMunyonlivesinOklahoma.Sheis14yearsold.Sheha
[originaltext]AmandaLaMunyonlivesinOklahoma.Sheis14yearsold.Sheha
[originaltext]Sayyougetintobed,preparedforahealthysevenoreightho
随机试题
Ifthebuildingproject______(打算月底前完成的)isdelayed,theconstructioncompanywil
[originaltext]Weallknowthatexerciseisgoodforyourhealth.Butsomek
Depression[A]Inbed,youtossandturn,unableto
Theabilitytolaughatyourownweaknessesandblunders(失误)haslongbeen
根据法律责任认定原则,正确的说法或做法是()。A.企业主要负责人有权拒绝承担法
改良缺乏某种抗病性的水稻品种,不宜采用的方法是( )。A.诱变育种 B.单倍体
体温在39℃以上,但24小时内体温差达2℃以上,最低时仍高于正常水平。此种热型为
A.骨B.肉C.皮D.脉E.筋脾在体合()。
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
曲线:与直线围成一个平面图形。此平面图形绕x轴旋转产生的旋转体的体积是:
最新回复
(
0
)