What Is the Difference Between Active and Reactive Hyperemia

Reactive hyperemia is the blood flow re- sponse to blood flow occlusion, whereas active hyperemia is the blood flow response to increased tissue metabolic activity.

What is reactive hyperemia?

Reactive hyperaemia is the increase in blood flow following arterial occlusion. The exact mechanisms mediating this response in skin are not fully understood.

Is hyperemia active or passive?

Hyperemia is an active process that is part of acute inflammation, whereas congestion is the passive process resulting from decreased outflow of venous blood, as occurs in congestive heart failure (Fig.