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# What is the normal range for ankle-brachial index?

## What is the normal range for ankle-brachial index?

A normal ankle-brachial index is between 1.0 and 1.4. Normal.

How do I calculate ankle-brachial index?

Health care providers calculate ABI by dividing the blood pressure in an artery of the ankle by the blood pressure in an artery of the arm. The result is the ABI. If this ratio is less than 0.9, it may mean that a person has peripheral artery disease (PAD) in the blood vessels in his or her legs.

What does an ABI value of 0.70 indicate?

The ABI is calculated as the higher pressure at the ankle divided by the higher of the left and right arm pressures. An ABI ratio above 0.90 is normal, 0.71-0.90 indicates mild obstruction, 0.41-0.70 indicates moderate obstruction, and <0.40 indicates severe obstruction.

### What does an ABI of 0.8 mean?

If the ABI is less than 0.8, sustained, high compression (i.e., 30–40 mmHg at the ankle) is not recommended. 2. In mixed venous/arterial disease (i.e., ABI is > 0.5 to < 0.8), reduced compression levels (i.e., 23–30 mmHg) are advised.

What does an ABI value of 1.42 indicate?

INTERPRETATION OF ABI RESULTS PAD is graded as mild to moderate if the ABI is between 0.4 and 0.9, and an ABI less than 0.40 is suggestive of severe PAD [19]. An ABI value greater than 1.3 is also considered abnormal, suggestive of non-compressible vessels.

What is abnormal ankle-brachial index?

An ankle-brachial index number is this range indicates that you have borderline PAD . Your doctor might recommend an exercise ankle-brachial index test. PAD (less than 0.90). An ankle-brachial index number in this range is considered abnormal and indicates a diagnosis of PAD .

## How do you calculate ABI example?

Example demonstrating how to calculate and interpret ABI ratios. Let’s say that you have a patient whose highest right ankle pressure is 139 mmHg and their highest overall brachial pressure is 126 mmHg. The right ABI ratio is calculated by dividing 139 mmHg by 126 mmHg, which equals 1.10 (a normal ABI).

What does ABI of 1.3 mean?

What does ABI of 0.5 mean?

On the other hand, an ABI of 0.5 means that only 50% of the blood is reaching the ankles, and 50% is blocked by PAD.

### What does ABI 1.3 mean?

What is a normal ankle blood pressure?

Conclusion. A primary reference for normal ankle SBP was suggested as 100-165 mmHg in the young and 110-170 mmHg in the middle-elderly subjects.