ANKLE-BRACHIAL INDEX

Other Names: ABI

Description/Test Basics/Reasons for the test: The purpose of the ankle-brachial index (ABI) test is to evaluate blood flow to your legs. This non-invasive, diagnostic test is used to screen for peripheral arterial disease (PAD); it is also used to see how well a particular treatment regimen is working. PAD is a condition that results from the narrowing of arteries, supplying blood to the legs, arms, abdomen, pelvis or neck, thus reducing blood flow to other parts of the body. People with peripheral artery disease are at a higher risk of heart attack, stroke and heart disease. The ABI test enables your cardiologist to determine if there is any narrowing or restriction of an artery or blood vessel that reduces blood flow, how serious the blockage is and exactly where it is located. This test is done by measuring blood pressure at the ankle and in the arm while a person is at rest.

Test preparation/pre-test guidelines: There is no special preparation guidelines for this test.  Please wear loose-fitting clothes. 

Test process/How the test is done: The stress technician will ask you to lie on your back while standard blood pressure cuffs are placed around your ankles and arms. The cuffs will be inflated and a small transducer (ultrasound probe) will be placed against the leg. As the cuffs are deflated waveforms will be documented assessing blood flow. Measurements are usually repeated after walking on a treadmill for 5 minutes. 

Post-test guidelines: There are no post-test restrictions following an ABI. 

Test location: Your ABI will be performed at our main office, located in Denton, Texas:   

The Heart Center of North Texas
3304 Colorado Blvd.
Suite 101
Denton, TX 76210




HOSPITAL PRIVILEGES:   •  Denton Regional Medical Center   •  Texas Health Presbyterian Hospital Denton
   •  Muenster Memorial Hospital   •  North Texas Medical Center


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