Ankle Brachial Index (ABI)

This test is done by measuring blood pressure at the ankle and in the arm while a person is at rest. Measurements are usually repeated at both sites after 5 minutes of walking on a treadmill.

The ankle-brachial index (ABI) result is used to predict the severity of peripheral arterial diseases  (PAD). A slight drop in your ABI with exercise means that you probably have PAD. This drop may be important, because PAD can be linked to a higher risk of heart attack or stroke.

Symptoms and risk factors

  • Age
  • Smoking
  • Diabetes
  • Overweight or obesity
  • Sedentary lifestyle
  • High cholesterol
  • Family history of atherosclerosis or claudication
  • High blood pressure
  • PAD
  • Pain or numbness in the feet
  • Thickening of the toenails
  • Shiny, smooth, dry skin of the legs or feet
  • Absent or diminished pulse in the legs or feet
  • Open sores, skin infections or ulcers that will not heal
  • Dry gangrene (dry, black skin) of the legs or feet

Click here to download report sample