Syncope is common, with a lifetime prevalence of 40%. Carotid imaging studies such as carotid duplex are commonly performed in patients presenting with syncope. When symptomatic, occlusive carotid artery disease causes focal neurologic symptoms such as weakness, altered sensation or speech, and not syncope. In addition, studies demonstrate that even elderly patients with syncope are unlikely to have carotid occlusive disease. Therefore, performing carotid imaging studies in patients with syncope increases cost without adding benefit. Furthermore, carotid imaging may identify incidental asymptomatic occlusive carotid artery disease that may be inappropriately assumed to be the cause of the syncope. This can delay the identification of the true cause of syncope and may subject the patient to additional risk-associated procedures such as catheter angiography, carotid endarterectomy (CEA), or carotid stenting.