An ABI ratio between 1.0 and 1.4 is normal. An ABI ratio between 0.9 and 1.0 is borderline. An ABI ratio of 0.9 or less means you have PAD. An ABI ratio between 0.4 and 0.7 means you have moderate PAD. An ABI ratio less than 0.4 means you have severe PAD.

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 ABI of 1.3 mean?

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.