首页
登录
职称英语
[originaltext]The injury to the brain caused by a blow happens when the brain i
[originaltext]The injury to the brain caused by a blow happens when the brain i
游客
2024-01-21
56
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. 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. 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. For patients from two to eighteen, the guidelines are similar— except there should be no loss of consciousness, no vomiting and no severe headache.
Questions 23 to 25 are based on the passage you have just heard.
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/3383183.html
相关试题推荐
[originaltext](5)OnOctober17,hurricaneGonzalohittheislandofBermuda
[originaltext]PoliceinIndonesiahaveidentifiedfouroutoffiveoftheJ
[originaltext]RallieswererecentlyheldinNewHampshire,Iowa,SouthCaro
[originaltext](5)PCBs,weremanufacturedfromthe1920s,butwerebannedin
[originaltext]TwoUSMarinehelicoptershavebumpedneartheHawaiianislan
[originaltext](5)LeadersinParisnegotiatingaclimatechangeagreementmi
[originaltext](5)LeadersinParisnegotiatingaclimatechangeagreementmi
[originaltext](5)LeadersinParisnegotiatingaclimatechangeagreementmi
[originaltext]FourAmericanteenagers,allchildrenofU.S.militaryperson
[originaltext]AhugestormthatcollapsedpartofacliffonIsrael’scentr
随机试题
WhatisonethingDavidlovesabouthisjob?[br][originaltext]W:David,whatd
患者女,24岁,新婚,突发左侧腰痛1周,寒战、高热1天,查体:体温39.2℃,血
量本利分析法中的保本点是指()。A.预算成本线与实际成本线的交点
下列关于我国法律的说法,错误的是()。A.1954年,第一届全国人民代表大会通过
我某公司对外报某商品每箱USD200FOB上海,外商要求改报CIFC3西雅图,则
共用题干 某工程项目的进度计划如下列单代号网络计划所示,时间单位为周。根据题意
(2017年真题)下列各项作业中,属于品种级作业的有( )。A.产品组装 B.
根据合伙企业法律制度规定,有限合伙企业的合伙协议应当载明的事项有()。A.执行事
某电影制作企业临时到外地拍摄,其在外地设立的摄制组可以开立的账户为()。A.专
(2019年真题)下列各项中,企业应确认为资产的是( )。 A.月末发票账
最新回复
(
0
)