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# A patient's stiff neck turned into severe pain, preventing

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Manager
Joined: 27 Jul 2011
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A patient's stiff neck turned into severe pain, preventing [#permalink]

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06 Dec 2012, 05:24
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76% (02:16) correct 24% (05:56) wrong based on 165 sessions

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A patient's stiff neck turned into severe pain, preventing him from getting up out of bed or even sitting at a desk without neck support. An X-ray revealed what appeared to be a fracture in one of the patient's spinal bifids. It is possible this fracture was already there, as is common with the spinal bifid as a birth defect. If there indeed was a neck bone fracture, it could lead to serious problems with the spinal cord, including body paralysis. Neck surgery might then be necessary.

Because a neck bone fracture is potentially paralytic, patients with such symptoms almost always have neck surgery. The appropriate surgery is performed unnecessarily in about 25% of all cases. A newly developed internal scan for the spine is highly accurate, producing 3 misdiagnoses for every 97 correct diagnoses. Clearly, using this test, doctors can largely avoid unnecessary neck surgery without, however, performing any fewer necessary ones than before, since __________.

Which of the following most logically completes the argument?

(A) the patients who are correctly diagnosed with this test as not having a neck bone fracture invariably have medical conditions that are much less serious than a neck bone fracture

(B) every patient who is diagnosed with this test as having neck bone fractures has more than one of the symptoms generally associated with neck bone fractures

(C) all of the patients who are diagnosed with this test as having neck bone fractures do, in fact, have neck bone fractures

(D) the misdiagnoses produced by this test are always instances of attributing neck bone fracture to someone who does not, in fact, have it

(E) the only patients who are misdiagnosed using this test are patients who lack one or more of the symptoms that are generally associated with neck bone fractures

OA after discussion.
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Manager
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Re: A patient's stiff neck turned into severe pain [#permalink]

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06 Dec 2012, 06:07
Tough and tricky one. Lots of detail. but the main focus is on the second para, the old situation had 25% neck surgeries which were unnecessary. The new test reduced this amount to 3% from 25% now the doctors claim that, they can avoid the unnecessary ones and still perform the necessary ones (we need to fill the gap) cos they are able to identify the ones who need surgery correctly compared to before and perform surgery only in necessary cases.

Option D fits the bill.

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VP
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Re: A patient's stiff neck turned into severe pain [#permalink]

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06 Dec 2012, 10:14
It is clear that the problem in neck is either from birth or due to fracture. Fracture if not treated might cause paralysis. The patients due to the fear of paralysis may opt for surgery in case of misdiagnoses. The new system of testing will reduce the number of unnecessary surgery since the new system does teh diagnoses more accurately.
D is the correct option

it was a small comprehension....

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Manager
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Re: A patient's stiff neck turned into severe pain [#permalink]

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06 Dec 2012, 20:27
zeke posted a great explanation there, you should check it out.

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Intern
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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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16 May 2013, 19:36
Which of the following most logically completes the argument?

(A) the patients who are correctly diagnosed with this test as not having a neck bone fracture invariably have medical conditions that are much less serious than a neck bone fracture If correctly diagnosed as not neck fract. and have some other problem, then those people shld be tested for other conditions. This compells the doctors to perform other tests. So, correct.

(B) every patient who is diagnosed with this test as having neck bone fractures has more than one of the symptoms generally associated with neck bone fractures

Doesnt matter, as surgery is already decided

(C) all of the patients who are diagnosed with this test as having neck bone fractures do, in fact, have neck bone fractures
doesnt mattr

(D) the misdiagnoses produced by this test are always instances of attributing neck bone fracture to someone who does not, in fact, have it
doesnt explain y we need other tests

(E) the only patients who are misdiagnosed using this test are patients who lack one or more of the symptoms that are generally associated with neck bone fractures
this also doeant explain y they need other tests.

and OA plz

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Intern
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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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03 Jun 2013, 18:06
What is the OA for this question?

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Manager
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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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04 Oct 2013, 02:12
Premise :
Neck fracture = paralytic => hence surgery.
25% of the surgeries are not necessary
New technique - 3 misdiagnosis wrt 100
from doctors can largely avoid unnecessary neck surgery without, however, performing any fewer necessary ones than before ==> 3 wrong diagnosis should not be ppl who need surgery

(A) the patients who are correctly diagnosed with this test as not having a neck bone fracture invariably have medical conditions that are much less serious than a neck bone fracture --> We need data on 3 misdiagnosis. Not correct

(B) every patient who is diagnosed with this test as having neck bone fractures has more than one of the symptoms generally associated with neck bone fractures --> We need data on 3 misdiagnosis. Not correct

(C) all of the patients who are diagnosed with this test as having neck bone fractures do, in fact, have neck bone fractures -->We need data on 3 misdiagnosis. Not correct

(D) the misdiagnoses produced by this test are always instances of attributing neck bone fracture to someone who does not, in fact, have it ---> This talks about misdiagnosis and tells us that these misdiagnosis are opposite. which means ppl who do not have Neck Bone fracture are misdiagnosed not the other way round. So we have 97% correctly diagnosed and 3% misdiagnosed have no Neck bone fracture. Perfect! Correct

(E) the only patients who are misdiagnosed using this test are patients who lack one or more of the symptoms that are generally associated with neck bone fractures ---> Though this talks about misdiagnosis, the reason does not provide us how new method will help. Not correct.
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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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18 Jul 2014, 20:35
It should be D..if the 3 misdiagnoses are cases where critical patients might be skipped..then it is not a foolproof way of testing the patient and Doctors can't be cent percent sure
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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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21 Jun 2017, 17:02
The sentence -> without, however, performing any fewer necessary ones than before; is really confusing. I interpreted it as the surgery rates remained at the same level as before the new technique. Anyone else feel the same?

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Re: A patient's stiff neck turned into severe pain, preventing [#permalink]

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22 Jun 2017, 00:57
A tough one got it wrong
Can anyone explain D in detail
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Re: A patient's stiff neck turned into severe pain, preventing   [#permalink] 22 Jun 2017, 00:57
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