It is estimated that peripheral arterial disease (PAD) affects approximately 8 to 12 million individuals in the United States (U.S.). Duplex ultrasonography of the upper extremity arteries is performed to provide an overview of the location, extent, and severity of vascular disease. This program explores duplex examination of the upper extremity arteries, as prescribed by the "Professional Performance Guidelines" of the Society for Vascular Ultrasound (SVU).