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
18
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
LeavingHomeGenerallyforstudentsorforpeop
PASSAGETWO[br]Howdonewtechnologieswidenthecircleoftrustinasociety?
Thesunwarmstheearth,whichmakesitpossibleforplants(grow)______.togro
面中部发育不良易导致哪种错畸形A.安氏Ⅱ类1分类错 B.安氏Ⅱ类2分类错 C
供货方交付的货物品种、型号、规格、质量不符合合同约定,采购方()。A、同意利
A.15天B.5大C.7天D.3天E.2天药品监督管理部门对有证据证明可能危害人
薄壁细胞纺锤形,表面有微细斜向交错的纹理,有时可见菲薄横隔的药材为()。A.三
廖老师在心理辅导课上经常使用文具等物品作为奖励替代物的改变学生的行为,这种做法属
供应商分类编号必须是唯一的。()
(2013年真题)依据《生产经营单位安全培训规定》,生产经营单位安全管理人员初次
最新回复
(
0
)