Lower Extremity Segmental Arterial Exam (ABI)

What is The Test?

This exam uses a combination of blood pressure cuffs and high frequency sound waves to find blockages in the arteries of the lower extremity.

Patient Preparation

There is no preparation for this exam.

What to Expect

Once in the room, you will be asked to remove your pants, shoes and socks and change into a gown. Once changed, you will lie on the exam table. High frequency sound waves will be used to “listen” to your blood flow in certain segments of each leg. Blood pressure cuffs will be applied to your ankles, calves and lower thighs. Once the cuffs are in place, the cuffs will inflate about half way and a blood flow waveform will be obtained. After this step, blood pressures will be obtained at the same levels. You will feel some tightness during the exam as the cuffs are inflated for the blood pressures and slight pressure where the ultrasound probe is placed to listen to your blood flow. Depending on the outcome of the exam, you may be asked to exercise to determine if your blood flow changes with exercise. This portion of the exam consists of walking on a treadmill at a controlled speed and incline for no longer than 3-5 minutes. Other exercise options may be determined if you cannot walk on a treadmill or are unsteady on your feet. The exam will take about 60 minutes. The information collected from your exam will be reviewed by our vascular specialists and the results will be discussed with you during your follow up visit.

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