首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Beyond the Pap Scientists have known for some time that virtually all cases of cervical cancer are triggered by a family of
Beyond the Pap Scientists have known for some time that virtually all cases of cervical cancer are triggered by a family of
admin
2014-09-12
64
问题
Beyond the Pap
Scientists have known for some time that virtually all cases of cervical cancer are triggered by a family of viruses called human papillomavirus, or HPV. Most women who become infected with HPV are able to shake off the virus and suffer no apparent long-term consequences to their health. But a few women develop a persistent infection that can, for reasons that are not entirely clear, eventually lead to cancerous changes in the cervix.
Now researchers at the Digene Corp. of Beltsville, Maryland, have developed a test that detects an active HPV infection by looking for its genetic byproducts in the vagina. The HPV test was better than the standard Pap test at finding cervical cancer at any stage, according to two studies published this month in the Journal of the American Medical Association. So far, so good. Unfortunately, the test’ s false-positive rate— how often it indicated that there was a problem when none existed—was almost twice as high as that for the Pap smear. In these cases, a biopsy of the woman’ s cervix showed no sign of disease.
And that’s the crux of the problem. How many women should undergo what is, when it comes right clown to it, unnecessary treatment to find a few more cases of cervical cancer? Shouldn’ t health officials focus instead on making sure that more women undergo regular Pap-smear examinations? After all, Pap smears, though far from perfect, have helped dramatically lower the death toll from cervical cancer, taking it from the No. 1 cause of death due to cancer in American women to the 10th.
Complicating matters is the fact that HPV is a very common infection. In some parts of the US as many as half of all women under age 35 have an active case. Yet 99 out of 100 women who are HPV-positive will never get cervical cancer, estimates Dr. Joanna Cain, vice president of the American College of Obstetricians and Gynecologists. "If those 99 women live their lives as if they’re going to develop cancer," she says, " we’ re not necessarily doing them any good.
At present, the HPV test is approved in the US only to help resolve ambiguous results from a Pap-smear test. Many gynecologists believe that HPV will eventually replace the Pap. But they’ re not willing to abandon it without a lot more detailed information and neither should you.
Pap smears have contributed to the promotion of health of many women.
选项
A、Right
B、Wrong
C、Not mentioned
答案
A
解析
由文章第三段最后一句的内容可知,虽然巴氏涂片试验还远未完善,但却为减少因子宫颈癌而死亡的人数起到了巨大的帮助作用。题干的内容和此处含义相符,故选A。
转载请注明原文地址:https://kaotiyun.com/show/5nhd777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
ChangesintheAmericanFamilyHowmuchchangehasreallyoccurredintheAmericanfamilyandwhataretheimplicationsofth
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
StressCanMakeYouSickScientistsarenowstudyinganewfieldofresearchwhichiscalledpsychoimmunology(心理免疫学).Itisb
Thepassageindicatesthatancienttreatmentsforinjuryanddiseasewere______.Itisbelievedbyscientiststhattraditional
随机试题
妊娠期龈瘤的描述,哪一项是不正确的
中学生甲、乙在上学的路上遇到一伙人寻衅滋事,乙到附近派出所报案,值班民警未采取任何措施,致使甲、乙被打伤。甲、乙申请复议,并请求损害的国家赔偿。复议机关应作何种复议决定?
关于板式橡胶支座抗剪弹性模量试验,请结合下图回答下列问题:试验过程中需对支座施加竖向荷载和预加水平荷载,下列相关表述正确是()。
11,25,37,64,104,()。
关于教学方法,错误的是
在关系数据库中,描述全局数据逻辑结构的是
Thesoldierwasofrunningawaywhentheenemy_____.
WhydidPeterJuddjointhearmy?PeterJuddatlast______.
Atlastsheleftherhouseandgottotheairport,______(结果却看到飞机正在飞走).
A、Thesurroundings.B、Thecumulativeinfluenceofotherpeople.C、Thegovernment’sintervention.D、Socialtrend.B
最新回复
(
0
)