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Often patients with ankle fractures that are stable, and

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Re: CR - Ankle fractures [#permalink] New post 11 Feb 2008, 18:07
JCLEONES wrote:
Often patients with ankle fractures that are stable, and thus do not
require surgery, are given follow-up x-rays because their orthopedists
are concerned about possibly having misjudged the stability of the fracture.
When a number of follow-up x-rays were reviewed, however, all
the fractures that had initially been judged stable were found to have
healed correctly. Therefore, it is a waste of money to order follow-up
x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?

A. Doctors who are general practitioners rather than orthopedists are
less likely than orthopedists to judge the stability of an ankle fracture
correctly.
B. Many ankle injuries for which an initial x-ray is ordered are revealed
by the x-ray not to involve any fracture of the ankle.
C. X-rays of patients of many different orthopedists working in several
hospitals were reviewed.
D. The healing of ankle fractures that have been surgically repaired is
always checked by means of a follow-up x-ray.
E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.


Ima go w/ C b/c it says that the statistics were broad and not probably not biased.
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Often patients with ankle fractures that are stable, and [#permalink] New post 04 Apr 2008, 11:29
Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?

A. Doctors who are general practitioners rather than orthopedists are less likely than orthopedists to judge the stability of an ankle fracture
correctly.

B. Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve any fracture of the ankle.

C. X-rays of patients of many different orthopedists working in several hospitals were reviewed.

D. The healing of ankle fractures that have been surgically repaired is always checked by means of a follow-up x-ray.

E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.
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Re: CR: X-Ray [#permalink] New post 04 Apr 2008, 11:54
prasannar wrote:
Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?

A. Doctors who are general practitioners rather than orthopedists are less likely than orthopedists to judge the stability of an ankle fracture
correctly.

B. Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve any fracture of the ankle.

C. X-rays of patients of many different orthopedists working in several hospitals were reviewed.

D. The healing of ankle fractures that have been surgically repaired is always checked by means of a follow-up x-ray.

E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.


I got C.
Argument is that follow-up x-rays are waste of money.
A is irrelevant, stem does not mention anything about general practitioners. If anything, this weakens the argument.
B is talking about initial x-ray, not relevant to follow-up x-ray.
D This is the same statement as the stem.
E Irrelevant.

I don't like C too much as I feel that it is weak support, but it is the best choice. C strengthens the stem by making the argument universally acceptable.
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Re: CR: X-Ray [#permalink] New post 04 Apr 2008, 12:34
C makes the most sense.
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Re: CR: X-Ray [#permalink] New post 04 Apr 2008, 13:30
I think it's clearly E.

It means Orthopedists routinely don't need a follow up on the stabled knee fracture and they are confident. Thus a follow up is really a waste of money.
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Re: CR: X-Ray [#permalink] New post 04 Apr 2008, 13:38
I maybe wrong but I will go with B.

If the initial X-Rays reveals that there is no fracture of the ankle then subsequent X-rays are going to give the same results and thereby there is no need to for the follow up x-rays and its a waster of money.

Can we please get the OA.
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Re: CR: X-Ray [#permalink] New post 04 Apr 2008, 14:50
Will go for C.

Billjean I just couldnt understand your explanation for E.
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Re: CR: X-Ray [#permalink] New post 05 Apr 2008, 01:09
prasannar wrote:
Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?

A. Doctors who are general practitioners rather than orthopedists are less likely than orthopedists to judge the stability of an ankle fracture
correctly.

B. Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve any fracture of the ankle.

C. X-rays of patients of many different orthopedists working in several hospitals were reviewed.

D. The healing of ankle fractures that have been surgically repaired is always checked by means of a follow-up x-ray.

E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.


I got C.

C makes the most sense. The review conducted by several other orthpedists in different hospitals provides an unbiased conclusion. Thus it strengthens the claim as the results have been proven by various other hospitals.
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Re: CR: X-Ray [#permalink] New post 05 Apr 2008, 01:15
The answer is C definitely.
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Re: CR - Ankle fractures [#permalink] New post 14 Apr 2008, 07:09
It is C, it is showing that the premise to the conclusion is based on a representative sample
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Re: CR - Ankle fractures [#permalink] New post 14 Apr 2008, 08:23
I would go with B. As it provides support to the conclusion. Conclusion is
"it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable."

And B says
"Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve any fracture of the ankle."
So putting money on follow up X-rays is waste.
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Re: CR - Ankle fractures [#permalink] New post 14 Apr 2008, 08:44
JCLEONES wrote:
Often patients with ankle fractures that are stable, and thus do not
require surgery, are given follow-up x-rays because their orthopedists
are concerned about possibly having misjudged the stability of the fracture.
When a number of follow-up x-rays were reviewed, however, all
the fractures that had initially been judged stable were found to have
healed correctly. Therefore, it is a waste of money to order follow-up
x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?

A. Doctors who are general practitioners rather than orthopedists are
less likely than orthopedists to judge the stability of an ankle fracture
correctly. (wrong choice. This fails to strengthen the argument)
B. Many ankle injuries for which an initial x-ray is ordered are revealed
by the x-ray not to involve any fracture of the ankle. (This does not prove anything. Wrong choice)
C. X-rays of patients of many different orthopedists working in several
hospitals were reviewed. (Strengthens the argument. Several orthopedists have confirmed this result. ) Correct.
D. The healing of ankle fractures that have been surgically repaired is
always checked by means of a follow-up x-ray. (unecessary)
E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.
(irrelevant)
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Re: CR - Ankle fractures [#permalink] New post 14 Apr 2008, 10:20
IMO C
if the population reviewed is not braod enough then this premise would not hold
C just lays down teh ground and tells us that the X rays from a wide variety of hospitals were chosen and accordingly gives support to the premise

thus c is the correct answer
what is the OA to the question
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Re: CR - Ankle fractures [#permalink] New post 14 Apr 2008, 15:24
Another C here.
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Re: CR - Ankle fractures [#permalink] New post 15 Apr 2008, 07:45
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I think it's D. Here is why:

if the ankle fractures have been surgically repaired, then it is totally a waste of time and money to have an x-ray of the fractures to see whether it's fixed because that should have been concluded at the time of surgery. I think B is wrong because "many" doesn't imply "most." Just because many ankle injuries don't involve any fractures doesn't mean that most of the injuries are on the same trend.

that's just my opinion. So my answer is D
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Re: CR - Ankle fractures [#permalink] New post 17 Apr 2008, 11:15
Not only does C show that the data for what the results are based on is represenative but in B, it is talking about 'ankle injuries' - what if by definiton ankle injuries include both 'ankle fracture' and 'non-ankle fracture' injuries? If that were the case then of course the xrays of 'many ankle injuries do not involve any ankle fractures', and the issue of whether or not a follow up is a waste of money is still not resolved.
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Re: CR - Ankle fractures [#permalink] New post 18 Apr 2008, 01:03
it can not be C because "many" can not imply "most." For example, imagine we deal with a country X that has a population of 100 million people. If only 1% of those people enjoy dancing, we can say that many people from country X enjoy dancing. Is that representative of the entire people or at least most of people? NO!

So "many" can NEVER imply "most" in any situation.
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Re: CR - Ankle fractures [#permalink] New post 18 Apr 2008, 02:54
I have got a different answer which isnt stated earlier.

I ll go with E which strongly supports the conclusion that follow up xrays are waste of money.
My Explanation :

E says " Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones " which means that Orthopedists order for the follow up x rays very routinely irrespective of the bones etc...

The word ' Routine ' trys to say that doctors do such an activity routinely and not with a specific reason.
Thus i feel this would strongly support the conclusion that follow up X rays are nothing but a waste of money.

Whats the OA ?

regards,
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Re: CR - Ankle fractures [#permalink] New post 18 Apr 2008, 04:23
Choice C. Choice b doesn't relate to fracture, which is the assumption in he question stem.
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Re: CR - Ankle fractures [#permalink] New post 18 Apr 2008, 04:36
ok, i'll rather go for C. I honestly don't like option C, but I find it as the best answer among the rest. I initially chose D without realizing that the argument was talking about patients who didn't undergo surgery. so that's my correction there.
Re: CR - Ankle fractures   [#permalink] 18 Apr 2008, 04:36
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