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 fractures 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 bones other than ankle bones.
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