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
2023-06-26
20
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/2783152.html
相关试题推荐
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext]Samhadworked30yearsforthesamecompanyandnowhehadt
[originaltext]Samhadworked30yearsforthesamecompanyandnowhehadt
[originaltext]Joeisastudentatacollegeinanurbanarea.Duringhisfi
[originaltext]Joeisastudentatacollegeinanurbanarea.Duringhisfi
[originaltext][19]Mr.Fosterstartedhispublishingbusinesswithonlyone
[originaltext][19]Mr.Fosterstartedhispublishingbusinesswithonlyone
[originaltext]Cambridgeisabout90kilometresnortheastofLondon.[16]It
[originaltext]Cambridgeisabout90kilometresnortheastofLondon.[16]It
随机试题
Beforediscussingtheeffectofdeflationandinflationonthedistribution
TheDragonBoatFestival,the5thdayofthe5thlunarmonth,hashadahistory
Completethesummarybelow.WriteNOMORETHANTHREEWORDSforeachanswer.Majo
Heaimedhisrifle,firedasingleshot,then______thespentcartridge.A、ejected
[originaltext]W:Ireallydon’tunderstandtoday’scollegestudents.Theytake
下列关于灭火器的选择应考虑的因素有()。A.灭火器配置场所的火灾种类
6岁儿童,B超发现甲状腺右侧1.2cm实性结节,无包膜,颈周未探及肿大淋巴结,治
共用题干 第二篇XerographyForalongtimeChest
关于承重模板支架搭设的说法,正确的是( )。A.脚手架宜利用支架体系搭设 B
某城镇最近在离居民区约600米的南方,建有一烟囱高50米的垃圾焚烧炉,冬天过后夏
最新回复
(
0
)