The ankle-brachial index (ABI) test is a simple, non-invasive test used to diagnose peripheral artery disease (PAD). It is a quick and easy way to measure the blood pressure in your ankles and compare it to the blood pressure in your arms. The results of the test can help your doctor determine if you have PAD and how severe it is.
What is an Ankle-Brachial Index?
An ankle-brachial index (ABI) is a test used to measure the blood pressure in your ankles and compare it to the blood pressure in your arms. The test is used to diagnose peripheral artery disease (PAD), a condition in which the arteries in your legs become narrowed or blocked, reducing the amount of blood flow to your legs.
What are the Advantages of the Ankle-Brachial Index Test?
The ankle-brachial index test is a simple, non-invasive test that can be done quickly and easily. It is a reliable way to diagnose PAD and can help your doctor determine the severity of the condition.
When Would an Ankle-Brachial Index be Needed?
Your doctor may recommend an ankle-brachial index test if you have symptoms of PAD, such as pain or cramping in your legs, or if you have risk factors for PAD, such as smoking, diabetes, or high blood pressure.
Who Performs an Ankle-Brachial Index Test?
The ankle-brachial index test is usually performed by a doctor, nurse, or other healthcare professional.
How is the Ankle-Brachial Index Test Done?
The ankle-brachial index test is a simple, non-invasive test. During the test, your doctor will measure the blood pressure in your ankles and compare it to the blood pressure in your arms.
How Do I Prepare for an Ankle-Brachial Index Test?
Before the test, you should wear loose-fitting clothing and remove any jewelry or watches from your arms and legs. You should also avoid smoking or drinking caffeine for at least 30 minutes before the test.
What to Expect on the Date of the Test
On the day of the test, you will be asked to lie down on an examination table. Your doctor will then measure the blood pressure in your ankles and arms using a blood pressure cuff.
What to Expect During an Ankle-Brachial Index Test
During the test, you may feel some pressure from the blood pressure cuff, but the test should not be painful. The test usually takes about 10 minutes.
What to Expect After an Ankle-Brachial Index Test
After the test, you should be able to resume your normal activities. There are no side effects or risks associated with the ankle-brachial index test.
What are the Risks of an Ankle-Brachial Index Test? Are There Side Effects?
The ankle-brachial index test is a safe and non-invasive test with no known risks or side effects.
What Type of Results Do You Get and What Do the Results Mean?
The results of the ankle-brachial index test are expressed as a ratio. A normal ratio is between 0.9 and 1.3. A ratio below 0.9 indicates PAD, while a ratio above 1.3 indicates an increased risk of PAD.
How is Ankle-Brachial Index Calculated?
The ankle-brachial index is calculated by dividing the systolic blood pressure in your ankle by the systolic blood pressure in your arm.
What Does a Low Ankle-Brachial Index Mean?
A low ankle-brachial index (below 0.9) indicates that you have peripheral artery disease (PAD).
What Does a High Ankle-Brachial Index Mean?
A high ankle-brachial index (above 1.3) indicates an increased risk of PAD.
When Should I Know the Results of My Ankle-Brachial Index Test?
Your doctor should be able to provide you with the results of your ankle-brachial index test within a few days.
When Should I Call My Doctor?
If you have any questions or concerns about your ankle-brachial index test, you should contact your doctor.
References
- Mayo Clinic. (2020). Ankle-brachial index. Retrieved from https://www.mayoclinic.org/tests-procedures/ankle-brachial-index/about/pac-20384919
- American Heart Association. (2020). Ankle-brachial index. Retrieved from https://www.heart.org/en/health-topics/peripheral-artery-disease/diagnosis-and-treatment-of-peripheral-artery-disease/ankle-brachial-index
- National Heart, Lung, and Blood Institute. (2020). Ankle-brachial index. Retrieved from https://www.nhlbi.nih.gov/health-topics/ankle-brachial-index
Keywords: ankle-brachial index, peripheral artery disease, PAD, blood pressure, test, results, ratio, low, high