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An Ankle-Brachial Index (ABI) result of 0.6-0.8 generally indicates borderline perfusion. This range suggests that there is some level of arterial insufficiency but not to the extent that is found in severe cases. In patients with borderline perfusion, there may be some symptoms of claudication or intermittent pain, but the condition is not as critical as it would be with lower ABI results, which would signify more severe ischemic conditions.

In this context, an ABI of 0.6-0.8 points to a potential risk for further development of peripheral artery disease (PAD) and may warrant further investigation or monitoring. The interpretation of an ABI in this range highlights the need for clinical assessment and potential interventions to improve blood flow and prevent progression of vascular disease.