Ankle-Brachial Index Test
Also known as an ABI test, the ankle-brachial index is a noninvasive test that uses inflatable cuffs to check circulation (blood flow) and measure blood pressure in the arteries at various places on the thigh, calf, foot and toes.
Blood pressure cuffs of various sizes are placed on your thigh, calf, foot and toes. Similar to having your blood pressure checked with an arm cuff, as the technician inflates the cuffs they progressively tighten and then are quickly released. You may feel some discomfort, but generally for less than 60 seconds for each measurement.
- If you have a wound or ulcer anywhere on your leg or foot, bring extra dressing supplies to dress the area after testing is completed. Dressings that cover wounds sometimes need to be partially or completely removed.
- Let the vascular laboratory technician know if you have had any previous bypass operations, stents or angioplasty for leg circulation.
- Depending on the number of measurements taken, testing generally lasts 10-20 minutes.
- You can resume your normal activities after testing is complete.
- The technician performing the test may be able to tell you how your results compare to normal.
- Talk with your doctor about whether you need further testing or treatment.
Information source: Society for Vascular Surgery
