Your healthcare provider might want you to have an ABI test if you are at risk for PAD. The ABI test can:

• Diagnose PAD and prevent its progression and complications
• Identify people who have a high risk for coronary artery disease

Things that can increase your risk for PAD include:

• Smoking
• Diabetes
• Being older than age 70
• High levels of lipids in your blood
• Known plaque formation in other arteries, like the coronary arteries in your heart
• Abnormal pulses in your lower legs
• Being younger than age 50, with diabetes and one additional risk factor, such as smoking or high blood pressure

For most people, there are no risks associated with having an ABI test. This test is not recommended if you have a blood clot in your leg. You might need a different type of test if you have severe pain in your legs.

There is very little you need to do to prepare for an ABI test. You can follow a normal diet on the day of the test. You shouldn’t need to stop taking any medicines before the procedure.

You may want to wear loose, comfortable clothes. This will allow the technician to easily place the blood pressure cuff on your arm and ankle. You’ll need to rest for at least 15 to 30 minutes before the procedure. Ask if your healthcare provider has any special instructions

The test is very similar to a standard blood pressure test. Ask your healthcare provider about what you can expect. In general, during your ABI test:

• You will lie flat during the procedure.
• A technician will place a blood pressure cuff just above your ankle, possible thigh and a sensor on your toe. A similar set up will be done on your arm and finger.
• The blood pressure cuffs will inflate and measurements will be taken

You should be able to go back to your normal activities right after your ABI test.

Be sure to follow up with your healthcare provider about your results. In some cases, you may need follow-up testing to get more information about a blocked vessel. This might include an ultrasound, MRI, or an arteriogram.