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
57
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、Many children suffer greatly from brain injury.
B、Many children are threatened by lung cancer.
C、Children suffer more from brain injury than from cancer.
D、Children have a high risk of developing cancer.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794247.html
相关试题推荐
[originaltext](23)There’safamousjokepostcardofNewYork,showingaMa
[originaltext](23)There’safamousjokepostcardofNewYork,showingaMa
[originaltext]Theinjurytothebraincausedbyablowhappenswhenthebra
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
[originaltext]W:Goodmorning.CanIhelpyou?M:Yes,please.I’manewstuden
[originaltext]W:Goodmorning.CanIhelpyou?M:Yes,please.I’manewstuden
[originaltext]W:Goodmorning.CanIhelpyou?M:Yes,please.I’manewstuden
[originaltext]W:(8)Howisyourhousehuntinggoing?M:Notverywell.Ihaven’t
[originaltext]ChinalaunchedtwoastronautsintospaceonOctober17th,whi
随机试题
SELLINGABUSINESS1Beforeyoumakeadealwithanypote
TheRiseoftheSharingEconomyA)Lastnight40,000peop
[originaltext]M:SoLeslie,couldyoutellussomethingaboutyourselffirst?W
软件架构风格描述某一特定领域中的系统组织方式和惯用模式,反映了领域中众多系统所共
评价数据处理系统审计准备工作的质量,内部审计师最可能采用:A、观察 B、评
TRH兴奋试验检查时出现延迟反应表明A.垂体本身无病变,下丘脑功能障碍 B.下
Thechangeinthatvillagewasmiraculou
学龄期儿童常见的心理行为问题是A、遗尿 B、学校恐惧症 C、咬指甲 D、自
交流电源相间电压值不超过420V,不低于380V,三相不平衡值应小于10V,如发
对符合现行小额担保贷款申请人条件的城镇妇女,最高限额为( )元。A.2000
最新回复
(
0
)