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TriStar Centennial Medical Center

Diagnosis of Peripheral Artery Disease (PAD)

PAD may be suspected based on symptoms, such as intermittent claudication, and your medical history. Other signs of PAD, such as weak pulses in the lower extremities, may be found during a physical exam.

PAD is often confirmed with an ankle-brachial index (ABI) test. Blood pressure is measured in arteries at the elbow and ankle with a blood pressure cuff and Doppler ultrasound. The pressures are compared in a ratio. If the ratio is lower than expected, it indicates a problem with blood flow in the legs. If you have an irregular ABI test, your doctor may recommend a treadmill test to assess your walking ability and distance.

Revision Information

  • CT angiography (CTA). Radiological Society of North America Radiology Info website. Available at: Updated August 27, 2014. Accessed June 23, 2014.

  • Hills AJ, Shalhoub J, et al. Peripheral arterial disease. Br J Hosp Med (Lond). 2009;70(10):560-565.

  • How is peripheral artery disease diagnosed? National Heart Lung and Blood Institute website. Available at: Updated June 2, 2014. Accessed June 23, 2014.

  • Peripheral arterial disease (PAD) of lower extremities. EBSCO DynaMed website. Available at: Updated June 13, 2014. Accessed June 23, 2014.

  • Symptoms and diagnosis of PAD. American Heart Association website. Available at: Updated August 16, 2012. Accessed June 23, 2014.

The health information in this Health Library is provided by a third party. TriStar Health does not in any way create the content of this information. It is provided solely for informational purposes. It does not constitute medical advice and is not intended to be a substitute for proper medical care provided by a physician. Always consult with your doctor for appropriate examinations, treatment, testing, and care recommendations. Do not rely on information on this site as a tool for self-diagnosis. If you have a medical emergency, call 911.