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.

How do you interpret segmental pressure?

Segmental Pressure Measurement Interpretation: Compare pressures vertically, a pressure difference > 20mmHg is indicative of an arterial obstruction. A difference > 20mmHg between the brachial pressures indicates a hemodynamically significant obstruction.

How do you read the toe brachial index?

A drop in ABI after exercise indicates a significant level of PAD may be present. 1 or 1.1 is a normal resting ankle-brachial index. This value indicates no significant blockages or lowered blood flow. Less than 1 indicates an abnormal resting ankle-brachial index.