Skip to main navigation
Skip to main content
Skip to footer
For
Medicare
For
Providers
For
Brokers
For
Employers
Español
For Individuals & Families:
For Individuals & Families
Medical
Dental
Other Supplemental
Explore coverage through work
How to Buy Health Insurance
Types of Dental Insurance
Open Enrollment vs. Special Enrollment
See all topics
Shop for Medicare plans
Member Guide
Find a Doctor
Log in to myCigna
Home
Knowledge Center
Wellness Library
Ankle-Brachial Index Test
Ankle-Brachial Index Test
Test Overview
This test is done by measuring blood pressure at the ankle and in the arm while a person is at rest. Some people also have an exercise test. In this case, the blood pressure measurements are repeated at both sites after a few minutes of exercise, such as walking on a treadmill.
Why It Is Done
Why It Is Done
This test is done to check for peripheral arterial disease.footnote 1
The test might be done to check your risk of heart attack and stroke.footnote 2 The results can help you and your doctor make decisions about how to lower your risk.
Results
Results
The ABI result can help diagnose peripheral arterial disease (PAD). The result can also be used to check your risk of a heart attack and stroke.
Normal
A normal resting ankle-brachial index is 1.0 to 1.4. This means that your blood pressure at your ankle is the same or greater than the pressure at your arm, and suggests that you do not have significant narrowing or blockage of blood flow.footnote 3
Abnormal
A lower ABI means you might have PAD. Abnormal values for the resting ankle-brachial index are 0.9 or lower and 1.40 or higher. If the ABI is 0.91 to 1.00, it is considered borderline abnormal.footnote 3
Abnormal values might mean you have a higher chance of having narrowed arteries in other parts of your body. This can increase your risk of a heart attack or stroke.
References
References
Citations
- Gerhard-Herman MD, et al. (2016). 2016 AHA/ACC guideline on the management of patients with lower extremity peripheral artery disease. Circulation, published online November 13, 2016. DOI: 10.1161/CIR.0000000000000471. Accessed November 25, 2016.
- Grundy SM, et al. (2018). 2018 AHA/ACC/AACVPR/AAPA/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA guideline on the management of blood cholesterol: A report of the American College of Cardiology/American Heart Association task force on clinical practice guidelines. Journal of the American College of Cardiology, published online November 8, 2018: S0735. DOI: 10.1016/j.jacc.2018.11.003. Accessed January 28, 2019.
- Aboyans V, et al. (2012). Measurement and interpretation of the ankle-brachial index: A scientific statement from the American Heart Association. Circulation, 126(24): 2890–2909.
Current as of: July 31, 2024
Author: Ignite Healthwise, LLC Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.
To learn more about Ignite Healthwise, LLC, visit webmdignite.com.
© 2024 Ignite Healthwise, LLC. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Ignite Healthwise, LLC.
Related Links
Peripheral Arterial Disease
<cipublic-spinner variant="large"><span>Loading…</span></cipublic-spinner>