Q1. A 69 yo presents to the ED with a sudden onset of painless vision loss in his left eye. He states the episode lasted 20 seconds and he feels fine now. He had two other similar episodes a month ago. Other than diabetes and hypertension, his health has been fine. He has a 30 pack year smoking history and one bottle of beer everyday. He is on enalapril and metformin. On a physical exam of the neck you hear a bruit. The patient undergoes a CT angio of the neck (See below). Based on the patient’s history, the surgeon will most likely be concerned about which vessel?
A
B
A & B
Neither A or B
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