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Which of the following most logically completes the passage?

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Which of the following most logically completes the passage? [#permalink] New post 09 Feb 2007, 20:28
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Which of the following most logically completes the passage?

Appendicitis (inflammation of the appendix) is potentially fatal; consequently, patients with symptoms strongly suggesting appendicitis almost have their appendix removed. The appropriate surgery is low-risk but performed unnecessarily in about 20 percent of all cases. A newly developed internal scan for appendicitis is highly accurate, producing two misdiagnoses for every 98 correct diagnoses. Clearly, using this test, doctors can largely avoid unnecessary removals of the appendix without, however, performing any fewer necessary ones than before, since .

A. the patients who are correctly diagnosed with this test as not having appendicitis invariably have medical conditions that are much less serious than appendicitis

B. the misdiagnoses produced by this test are always instances of attributing appendicitis to someone who does not, in fact, have it

C. all of the patients who are diagnosed with this test as having appendicitis do, in fact, have appendicitis

D. every patient who is diagnosed with this test as having appendicitis has more than one of the symptoms generally associated with appendicitis

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 appendicitis
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Re: CR - Appendicitis [#permalink] New post 09 Feb 2007, 22:10
AK wrote:
Which of the following most logically completes the passage?

Appendicitis (inflammation of the appendix) is potentially fatal; consequently, patients with symptoms strongly suggesting appendicitis almost have their appendix removed. The appropriate surgery is low-risk but performed unnecessarily in about 20 percent of all cases. A newly developed internal scan for appendicitis is highly accurate, producing two misdiagnoses for every 98 correct diagnoses. Clearly, using this test, doctors can largely avoid unnecessary removals of the appendix without, however, performing any fewer necessary ones than before, since .

A. the patients who are correctly diagnosed with this test as not having appendicitis invariably have medical conditions that are much less serious than appendicitis

B. the misdiagnoses produced by this test are always instances of attributing appendicitis to someone who does not, in fact, have it

C. all of the patients who are diagnosed with this test as having appendicitis do, in fact, have appendicitis

D. every patient who is diagnosed with this test as having appendicitis has more than one of the symptoms generally associated with appendicitis

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 appendicitis


The feature of the new test is that doctors will always be able to perform the appendicits surgery whenever there is a need.. ->as implied by
doctors can largely avoid unnecessary removals of the appendix without, however, performing any fewer necessary ones than before, since .

This means that the 2 misdiagnoses produced by the test must be false positives(cases where surgery is not required) --> restated as

the misdiagnoses produced by this test are always instances of attributing appendicitis to someone who does not, in fact, have it

I pick B.
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 [#permalink] New post 11 Feb 2007, 11:44
correct, B...
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 [#permalink] New post 18 Feb 2007, 08:46
One more 'B'
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 [#permalink] New post 18 Feb 2007, 21:36
OA = B
  [#permalink] 18 Feb 2007, 21:36
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Which of the following most logically completes the passage?

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