What is the best test for peripheral vascular disease?
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An ankle-brachial index is best for evaluating patients with symptoms of claudication (strength of recommendation [SOR]: B, multiple cohort studies). That said, duplex ultrasonography or magnetic resonance angiography may be a preferable first step if immediate revascularization appears necessary (SOR: C, expert consensus and case reports).
Journal of Family Practice, 57(6) 2008: 403-405.