新prep cr 110

miffyhui · 发表于 2012-3-21 21:20:44

110. (30658-!-item-!-188;#058&005491) (GWD 7-Q17)

Of patients over 65 years old who survived coronary bypass surgery—a procedure widely prescribed for people with heart disease—only 75 percent benefited from the surgery. Thus it appears that for one in four such patients, the doctors who advised them to undergo this surgery, with its attendant risks and expense, were more interested in an opportunity to practice their skills and in their fee than in helping the patient.
Which of the following, if true, most seriously undermines the argument?
A. Many of the patients who receive coronary bypass surgery are less than 55 years old.
B. Possible benefits of coronary bypass surgery include both relief from troubling symptoms and prolongation of life.
C. Most of the patients in the survey decided to undergo coronary bypass surgery because they were advised that the surgery would reduce their risk of future heart attacks.
D. The patients over 65 years old who did not benefit from the coronary bypass surgery were as fully informed as those who did benefit from the surgery as to the risks of the surgery prior to undergoing it.
E. The patients who underwent coronary bypass surgery but who did not benefit from it were medically indistinguishable, prior to their surgery, from the patients who did benefit.
D选项是不是也有削弱的作用，因为手术受益的人和没有受益的人在手术之前都充分了解了手术的风险。有点想不明白这个选项为什么错了

sdcar2010 · 发表于 2012-3-21 21:29:04

D) strengthens the conslusion. The doctor did not cover up the risk to those 1/4 patients.

miffyhui · 发表于 2012-3-22 08:54:33

不明白，怎么加强了。病人都充分了解了手术风险，医生并没有误导

miaomiao1014 · 发表于 2012-3-23 04:42:45

不明白，怎么加强了。病人都充分了解了手术风险，医生并没有误导

-- by 会员 miffyhui (2012/3/22 8:54:33)

25% of the patient do not benefit from the surgery -- they can spend money somewhere else -- only if the doctor can tell who will not be benefit that the doctor can suggest the patient to not do the surgery

Imagine like this: if you have four people in front of you, and you only know that one of them will not be benefited, but you dont know who he is, how can you pick he out and tell him to do something else?

So, D) If the patient full understand the risks, the Dr can advise the patient to do surgery or something else respectively.

E) It is not identifiable -- thus we don't know who will not be benefit before the actual surgery -- the surgery is not avoidable

Hope this helps! Cuz I did wrong on this question too!

miffyhui · 发表于 2012-3-23 09:05:38

懂了~！谢谢

新prep cr 110

所属分类: GMAT考试

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