GMAT Critical Reasoning

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Source: GWD

Level: 4

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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