求助GWD-TN-10

lmf0801

GWD-24-Q 22:

Often patients with ankle fractures that are stable, and thus do notrequire surgery, are given follow-up x-rays because their orthopedistsare concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, allthe fractures that had initially been judged stable were found to havehealed 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 areless 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 revealedby the x-ray not to involve any fracture of the ankle.

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

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

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

--------------------------------------------------------------------------------------------------求大虾解释不讲解一下

kaikaichen

感觉是这样解释的：如果这个情况只发生在个别医院或个别医生身上，有可能是因为这些医院和医生的医术高超，判断准确，后续x-ray和最初诊断的结论一致。如果换了个医院或医生，也许他们就没那么高明，后续x-ray检查就是必要的

C就是排除这种可能，说明这是一种普遍情况