久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

您現(xiàn)在的位置: Language Tips> Audio & Video> Special Speed News  
   
 





 
A test for brain injury creates its own risks in children
[ 2009-10-28 15:51 ]

This is the VOA Special English Health Report.

A concussion happens when the brain is shaken, often in a car crash or a fall or a strike to the head in sports. Concussions can be mild, but doctors may order a CT scan to look for a more serious injury. Computed tomography provides a detailed image of the brain. But a recent study warned that more children than necessary are being exposed to radiation this way.

A test for brain injury creates its own risks in children

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 two years of age.

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 2 to 18, the guidelines are similar -- except there should be no loss of consciousness, no vomiting and no severe headache.

The report appears in the Lancet medical journal.

Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said they should not return to sports or school until fully recovered. The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.

Young people often take longer than adults to recover from a concussion. The experts say individual progress and not a set time period should always guide a decision to return to play.

More than one million cases of concussion are reported each year in the United States alone.

A congressional committee has called a hearing Wednesday to discuss legal issues related to head injuries in football. Recently there have been concerns about players retired from the National Football League. But professionals are not the only ones getting concussions. There are high school players who have died from brain injuries.

And that's the VOA Special English Health Report, written by Caty Weaver. I'm Steve Ember.

tomography: any of several techniques for making detailed x-rays of a predetermined plane section of a solid object while blurring out the images of other planes X線體層照相術(shù),X線斷層照相術(shù)

Related stories:

Deficits found in brain's reward system in A.D.H.D. patients

Hands-only CPR is a simpler way to save lives

Simple measures to prevent injuries to children

New findings on children and mental illness

(Source: VOA 英語點(diǎn)津編輯)

英語點(diǎn)津版權(quán)說明:凡注明來源為“英語點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
相關(guān)文章 Related Story
 
 
 
本頻道最新推薦
 
讓人難以抵抗的表白
影像親近癥 videophilia
自助游怎么說
Beijing chase 1st league title
咖喱可抗癌?
翻吧推薦
 
論壇熱貼
 
萬圣節(jié)問題火熱征集!
翻譯達(dá)人評(píng)選,快來投票!
經(jīng)典英語口語,不得不看(推薦)
I chocolate you!怎么翻譯?
請(qǐng)教obama演講里的一句話
 

 

久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    一区二区三区在线视频播放| 麻豆91在线播放免费| 欧美色综合网站| 婷婷久久综合九色国产成人| 欧美r级在线观看| 粉嫩在线一区二区三区视频| ●精品国产综合乱码久久久久| 在线精品视频一区二区| 日本视频一区二区| 国产欧美日韩视频在线观看| 色欧美乱欧美15图片| 欧美96一区二区免费视频| 久久久综合网站| 一本久久a久久精品亚洲| 视频精品一区二区| 国产亚洲精品精华液| 在线亚洲+欧美+日本专区| 免费观看在线综合| 国产精品免费av| 欧美精品国产精品| 国产suv精品一区二区6| 亚洲成人精品在线观看| 久久久久久久久久久黄色| 色综合久久久久久久久久久| 另类小说视频一区二区| 日韩美女久久久| 日韩一级在线观看| 97se狠狠狠综合亚洲狠狠| 日本不卡的三区四区五区| 国产精品不卡一区| 91精品国产全国免费观看| 成人美女视频在线观看18| 五月天网站亚洲| 国产精品三级在线观看| 51精品视频一区二区三区| 高清久久久久久| 日韩av电影免费观看高清完整版在线观看| 亚洲国产高清在线| 日韩一区二区免费视频| 91亚洲永久精品| 国产中文字幕一区| 亚洲国产视频在线| 日本一区二区三区dvd视频在线 | 99久久精品久久久久久清纯| 日韩精品亚洲一区| 中文字幕亚洲视频| 亚洲精品在线电影| 欧美日韩国产经典色站一区二区三区| 成人性色生活片| 免费观看在线色综合| 又紧又大又爽精品一区二区| 国产午夜亚洲精品不卡| 欧美精品第1页| 色婷婷综合久久久久中文| 国产九色sp调教91| 青青青爽久久午夜综合久久午夜| 亚洲乱码国产乱码精品精可以看| 国产亚洲制服色| 日韩精品一区二区三区三区免费 | 懂色av中文一区二区三区| 日韩1区2区3区| 日韩一区日韩二区| 国产日韩影视精品| 日韩欧美的一区二区| 欧美视频精品在线观看| 97se亚洲国产综合在线| 国产超碰在线一区| 国产一区二区三区免费在线观看| 婷婷综合另类小说色区| 一区二区三区视频在线观看| 国产精品国产自产拍高清av| 久久久久国产精品人| 欧美videossexotv100| 欧美日韩精品二区第二页| 色爱区综合激月婷婷| 成人av电影免费观看| 国产电影一区二区三区| 国产在线播放一区三区四| 男男成人高潮片免费网站| 亚洲成av人在线观看| 亚洲综合精品久久| 一区二区三区 在线观看视频| 综合久久久久久久| 综合色天天鬼久久鬼色| 国产精品嫩草久久久久| 中文字幕乱码一区二区免费| 国产网站一区二区三区| 久久视频一区二区| 久久伊99综合婷婷久久伊| 精品国产免费人成在线观看| 日韩欧美你懂的| 日韩视频国产视频| 欧美电影免费观看高清完整版在线| 欧美高清激情brazzers| 欧美人xxxx| 欧美日韩午夜影院| 欧美裸体一区二区三区| 8v天堂国产在线一区二区| 7777精品久久久大香线蕉| 欧美精品v国产精品v日韩精品| 欧美日韩午夜影院| 91精品婷婷国产综合久久性色| 欧美久久久一区| 欧美精品久久99| 日韩一区二区在线看| 欧美va亚洲va国产综合| 26uuu国产日韩综合| 久久久久久久综合日本| 国产亚洲自拍一区| 国产精品久久久久久亚洲伦| 亚洲视频图片小说| 亚洲小说欧美激情另类| 三级久久三级久久| 久久精品国产久精国产| 国产精品中文字幕日韩精品| 成人一区二区三区视频| 91在线你懂得| 欧美撒尿777hd撒尿| 日韩无一区二区| 久久久91精品国产一区二区精品 | av在线不卡观看免费观看| av电影一区二区| 欧美视频一区在线观看| 91精品国产乱码久久蜜臀| 精品国产污污免费网站入口| 国产日韩精品一区二区三区在线| 国产精品国产三级国产aⅴ原创| 亚洲精品ww久久久久久p站| 肉色丝袜一区二区| 国产永久精品大片wwwapp| 成人福利在线看| 欧美日韩小视频| 2020国产精品| 亚洲视频 欧洲视频| 午夜精品视频一区| 国产麻豆精品在线观看| av激情综合网| 337p亚洲精品色噜噜| 久久久亚洲国产美女国产盗摄 | 日韩精品一区二区三区在线观看 | 国产高清精品网站| 色综合色狠狠综合色| 91精品国产品国语在线不卡| 久久精品夜色噜噜亚洲a∨| 亚洲色大成网站www久久九九| 五月婷婷激情综合网| 国产jizzjizz一区二区| 欧美性猛交xxxx黑人交| 久久一二三国产| 一区二区三区四区视频精品免费| 麻豆精品久久精品色综合| 99在线精品视频| 日韩视频国产视频| 亚洲欧美日韩小说| 麻豆精品一区二区| 97久久人人超碰| 日韩精品最新网址| 亚洲人成影院在线观看| 蜜桃91丨九色丨蝌蚪91桃色| 99免费精品在线| 日韩欧美精品在线视频| 亚洲三级在线观看| 激情深爱一区二区| 欧美做爰猛烈大尺度电影无法无天| 日韩精品一区在线| 一区二区三区中文在线| 国产乱码字幕精品高清av| 欧美三级欧美一级| 国产精品毛片大码女人| 美脚の诱脚舐め脚责91| 色吊一区二区三区| 久久精品这里都是精品| 天堂va蜜桃一区二区三区漫画版| 成人aa视频在线观看| 欧美大肚乱孕交hd孕妇| 亚洲国产毛片aaaaa无费看| 国产91精品一区二区| 日韩一区二区三区在线| 一区二区三区精品在线| 福利一区二区在线| 日韩欧美一级片| 亚洲五码中文字幕| 成人黄动漫网站免费app| 精品三级av在线| 亚洲午夜一区二区| 91亚洲午夜精品久久久久久| 久久免费偷拍视频| 免费日本视频一区| 欧美影视一区在线| 亚洲天天做日日做天天谢日日欢 | 亚洲一区在线观看免费| 成人av综合一区| 久久久美女毛片| 麻豆精品在线播放| 欧美挠脚心视频网站| 一区二区久久久久久| 不卡在线观看av| 国产欧美精品一区| 国产精品中文字幕日韩精品| 日韩精品自拍偷拍|