Ankle-Brachial Index (ABI) Testing

The most common test for PAD is the ankle-brachial index (ABI), a painless exam in which a special stethoscope is used to compare the blood pressure in your feet and arms. The blood pressure in your arms and ankles is checked using a regular blood pressure cuff and a special ultrasound stethoscope called a Doppler. The pressure in your ankle is compared to the pressure in your arm to determine how well your blood is flowing and whether further tests are needed.