Of patients over 65 years old who survived coronary bypass : GMAT Critical Reasoning (CR)
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# Of patients over 65 years old who survived coronary bypass

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Director
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Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 02:34
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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.
[Reveal] Spoiler: OA
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Director
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 03:28
Hallo joe,
think that D) is best option
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 04:23
I'm going with A.
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17 Apr 2006, 06:11
I believe it is E.
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17 Apr 2006, 06:55
I think it's E

patients are indistinguishable -> doctors advise them on the same ground that they hav 75% chance of getting benefit from the surgery.
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 07:03
E seems correct
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17 Apr 2006, 07:07
E seems to be the best option
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 07:45
IMO it is E
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17 Apr 2006, 07:49
A seems to be the best option.
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17 Apr 2006, 08:02
Its between D and E. I pick D because the passage states that "doctors who advised who advised them to undergo this surgery" so I inferred that doctors advised them of all the benefits and and risk of this surgery
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 08:35
E for me
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IE IMBA 2010

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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 09:21
E. The doctors could not have misguided patients for selfish motives if they could not distinguish between the patients who would benefit from the surgery and those who would not.
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 09:45
One more for E
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17 Apr 2006, 14:10
the oa is E,

I don't understand the connection between being selfish and having the patients have the same medical condidtion. Can you guys shed some light? thanks
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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17 Apr 2006, 15:19
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 states that the doctors knew about the patients' conditions and the doctors didnt influence the patients which is OK...

But E has a stronger point that distinguishing whose operation would be successful and those whose wouldnt is impossible.

So E wins as it most seriously undermines the arg
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17 Apr 2006, 17:08
still a little confused on why e is better than d....

it seems that e fails to address that even though the patients were medically indistinguishable there is only a 25% probability of success.

whereas d, shifts the decision making from the doctor to the patient.
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17 Apr 2006, 23:27
arguement---The 25%-didnt benefit from the surg-were advised by doctors for selfish motives.

If people who benefited were the same as people who did not benefit before the surgery. How would the doc know that the 25 wouldnt benefit so that the doc could be selfish?

D is out of scope, just cuz they were equally informed does not mean that the docs could not lie to the 25.
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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18 Apr 2006, 00:19
In concise - the argument claims that the doctors are mean and self-seeking.

We are asked to pick the best choice which weakens this argument.

Therefore 'E' is valid as it describes a genuine reason for a 25% failure, which is beyond doctor's ability to foresee the failure.
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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18 Apr 2006, 09:19
I pick D.
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Re: Of patients over 65 years old who survived coronary bypass [#permalink]

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18 Apr 2006, 12:54
E is better than D.

The argument says that doctors were selfish and wanted to practice skills and get the fee. the arguments will be weakened if it is proved that doctors have not done so, but they did so (operation) because all the patients were indisntinguisgable.

Doctor did not know that patient x will benifit and patient y will not. so the doctors were not selfish and wanted to benefit from the fee.

This is what stated in E.

joemama142000 wrote:
Of patients over 65 years old who survived coronary bypass surgeryâ€”a procedure widely prescribed for people with heart diseaseâ€”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.
Re: Of patients over 65 years old who survived coronary bypass   [#permalink] 18 Apr 2006, 12:54

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