What ABI value is typically associated with patients exhibiting claudication?

An Ankle-Brachial Index (ABI) value that falls within the range of 0.5 to 0.9 is associated with claudication, which is characterized by pain or discomfort in the legs during physical activities, typically due to inadequate blood flow. In this range, there is evidence of moderate peripheral artery disease (PAD), where blood flow is compromised but does not yet severely limit the patient’s mobility.

In clinical practice, an ABI of 0.5 to 0.9 suggests that although the patient is experiencing some level of ischemia indicated by claudication, there is still some blood flow being maintained. Monitoring and managing this condition is crucial, as lower ABI values would indicate more severe blockage and higher risk of complications. Therefore, understanding the ABI is essential in diagnosing and treating vascular conditions effectively.