 When a patient has peripheral artery disease, there are sometimes two terms that come up, which is elevation, pallor, and dependent, rubric. And what that means is that arthrosclerosis of the lower extremity causes peripheral artery disease. And so now when the blood flow to the lower extremities is obstructed because of this arthrosclerosis, that means when the patient is, when the legs are in a dependent position, so let's say they sit down and their feet are on the ground and their, their bottom is on a chair, then it's dependent rubour because it's this kind of a rebound, a hyperemia or blood flow that goes to the legs when the legs are in a dependent position because the arteries are not really feeding it. When we have the elevation pallor, so now the patient elevates the legs and there is some problem with pumping the blood into this elevated position because now we have to counteract gravity. That's when there is obstruction in the blood flow and there might be this depended, this elevation pallor, so signs and symptoms of paleness, pallor, or even cyanosis in the lower extremities. For full information on peripheral artery disease, check out my full video on YouTube.