A 62-Year-Old, Right-Handed Man Is Evaluated for an Episode of Left

A 62-year-old, right-handed man is evaluated for an episode of left leg weakness that spontaneously resolved within 30 minutes of onset.  The patient also has had transient vision loss in the right eye.  Medical history is significant for hypertension and diabetes mellitus.  Evaluation reveals an atherosclerotic plaque in the extracranial portion of the supplying artery.  During percutaneous stenting of the lesion, the vascular catheter is inserted into the right common femoral artery and gradually advanced to the level of the aortic arch.  Which of the following is the most likely path of the catheter before stenting of the culprit lesion can be performed?

A) Aorta → brachiocephalic artery → common carotid artery → external carotid artery
B) Aorta → brachiocephalic artery → common carotid artery → internal carotid artery
C) Aorta → common carotid artery → external carotid artery
D) Aorta → common carotid artery → internal carotid artery
E) Aorta → subclavian artery → vertebral artery

Correct Answer:

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