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Ankle brachial index PDF

The ankle brachial index (ABI) is a quantifiable measurement of lower leg blood supply. It’s a comparison of the systolic pressure in the upper arm to the systolic pressure at the ankle. The ankle pressure should be equal to or slightly higher than the arm pressure in the absence of arterial occlusive disease. The test is used to rule out significant arterial disease and to determine the amount of compression that can be safely applied.