Which of the following statements about upper extremity arterial insufficiency is/are true?

D. The inflammatory process of arteries obstructed by an arteritis should be controlled before a bypass graft is inserted.

DISCUSSION: The larger muscle mass and heavier work loads of the lower extremities may lead to the development of ischemic symptoms in them more often than in the upper extremities. Blunt trauma occurs more often in the lower extremities. Arteriovenous fistulas more frequently follow penetrating trauma than blunt trauma. If the arteritis is not controlled before a bypass graft is placed, the inflammatory process may contribute to early occlusion of the graft.