We’re Here for You! Coronavirus (COVID-19) Updates
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Pay My Bill
  • Patient Portal
  • Careers
  • Health Professionals
  • Medical Education
Central Maine Heart and Vascular Institute

Central Maine Heart and Vascular Institute

  • Providers & Locations
        • Providers

          • Find a Provider
        • Locations

          • Central Maine Medical Center
          • Bridgton Hospital
          • Rumford Hospital
          • Topsham Care Center
          • Maine Urgent Care
          • Find a Practice
  • Services
        • Services

          • Audiology
          • Bariatric Surgery
          • Behavioral Health
          • Breast Health
          • Cancer Care
          • Diabetes & Endocrinology
          • Ear, Nose & Throat (ENT)
          • Emergency Care
          • Gastroenterology
          • Heart & Vascular Care
          • Imaging Services
          • Integrative Medicine
          • Long-Term Care
          • Maternity Care
          • Neurosciences
          • Nutrition Services
          • Occupational Health
          • Orthopaedic Care
          • Palliative Care
          • Pediatrics
          • Pharmacy
          • Plastic & Reconstructive Surgery
          • Primary Care
          • Pulmonary Care
          • Rehabilitation & Therapy
          • Rheumatology
          • Sleep Medicine
          • Surgical Services
          • Topsham Care Center
          • Trauma Center
          • Urgent Care
          • Urology
          • Women’s Health
          • Wound Care
  • Patients & Visitors
        • Patients & Visitors

          • Health Library
          • Notary Public
          • Spiritual Support
          • Billing & Financial Information
          • Be Safe Speak Up
          • Student Nurses
          • Tobacco and Smoke Free Campuses
          • Your Rights and Responsibilities
          • myHealthlink Patient Portal
        • Living Well

          • Classes & Events
  • About Us
        • About Us

          • About Central Maine Healthcare
          • Board of Directors
          • Leadership Team
          • Mission, Vision & Values
          • Accreditations & Certifications
          • Community Benefits
          • ACO Public Reporting
          • CMH Alert – COVID-19
          • Vendor Relations
          • Contact CMH
          • Privacy Policy
          • Social Media Policy
        • Ways to Give

          • Ways to Give
          • Donate Now
          • Planned Giving
          • Events & Fundraisers
          • Donor Bill of Rights
          • Contact CMH Development
          • Volunteer
Ankle-brachial Index (ABI)
Home Diagnosis Ankle-brachial Index (ABI)

Ankle-brachial Index (ABI)

The ankle-brachial index is a simple, noninvasive test to check for peripheral artery disease (PAD). It’s a quick outpatient test that measures the blood pressure at your ankle compared with the blood pressure at your arm.

The results are determined by dividing the blood pressure in an artery of the ankle by the blood pressure in an artery of the arm. A low ankle-brachial ratio or index number can be an indication of PAD.

Why Do You Need an Ankle-Brachial Index?

Your doctor may order an ankle-brachial index if you have leg pain while walking or have any of the following risk factors for PAD:

  • Being older than age 70, or being younger than 50 with diabetes and one additional risk factor
  • Diabetes
  • High blood pressure or cholesterol
  • Smoking

The test can also be done to check the severity of PAD if you’ve already been diagnosed. It may be something your doctor orders annually.

Getting Ready for an Ankle-Brachial Index

Minimal preparation is needed for this test. You may want to wear loose clothing so the technician can easily place the blood pressure cuffs on your arm and ankle. When you schedule your appointment, ask if there are any additional instructions you may need to follow before your test.

What to Expect During an Ankle-Brachial Index

You’ll need to rest for at least 15 to 30 minutes before the procedure. During the test, you will lie on the table while a technician measures your blood pressure in both arms and both ankles. Testing generally lasts 10–20 minutes, depending on how many times your blood pressure is taken.

The technician will calculate the results by dividing the blood pressure in your ankle by the blood pressure in your arm. A low ratio indicates potential PAD. These results will be shared with your doctor, who will share them with you.

Depending on your doctor’s schedule, you may or may not receive the results that day.

 

Primary Sidebar

Diagnosis

  • About Us
    • Arbor House
    • Awards and Accreditations
    • Mission
    • Patient Stories
    • Single Stay Inpatient Care Unit (SSU)
  • Conditions We Treat
    • Arrhythmia/Atrial Fibrillation
    • Coronary Artery Disease
    • Heart Attack
    • Heart Failure
    • Peripheral Artery Disease
    • Valve Disease
    • Vein Disorders
  • Contact Us
  • Diagnosis
    • Angioplasty
    • Ankle-brachial Index (ABI)
    • Cardiac Catheterization Lab
    • Cardiac MRI
    • Doppler Ultrasound
    • Echocardiogram
    • Holter Monitors
    • Stress Test
    • Vascular Lab
  • Education and Support
    • Glossary of Medical Terms
    • Heart-Healthy Recipes
  • Find Us
  • Home
  • Treatment and Specialties
    • Anticoagulation Management
    • Cardiopulmonary Rehabilitation Program
    • Cardiothoracic Surgery
    • Cardiovascular Surgery
    • Coronary Bypass Surgery
    • Electrophysiology
    • Minimally Invasive Heart Valve Surgery
      • Aortic Valve Surgery
        • TAVR
      • Mitral Valve Surgery
        • Mitra Clips
    • Valve Repair/Replacement
    • Vascular & Endovascular Surgery
  • Why Choose Us?
Central Maine Healthcare Logo

About Our Health System

  • Central Maine Medical Center
  • Bridgton Hospital
  • Rumford Hospital
  • Topsham Care Center
  • Physician Practices

I Want To…

  • Find A Provider
  • Find a Location
  • Find a Job
  • Pay My Bill
  • Make a Gift
  • Find a Class or Event
  • Contact CMH
  • CMH News

For Our Community

  • CMH Privacy Policy
  • Social Media Policy for Site Visitors
  • Interpreter Services & Assistive Devices
  • Non-Discrimination Notice
  • Your Rights & Responsibilities

For Healthcare Professionals

  • Join Our Team
  • Graduate Medical Education

For Employees

  • Employee Portal
  • Employee Remote Access