A nurse is reinforcing teaching to a client who has peripheral arterial disease. Which of the following statements should the nurse include in the teaching to explain the cause of peripheral arterial disease?

Choice A reason: Peripheral arterial disease is caused by atherosclerosis, where plaque narrows arteries, reducing oxygen-rich blood flow to tissues, leading to ischemia and claudication. This explanation accurately describes the pathophysiology, making it the correct statement to include in teaching about the disease’s cause. Choice B reason: Blood pooling in the legs is characteristic of peripheral venous disease, not arterial disease, which involves reduced arterial flow due to atherosclerosis. This statement is incorrect, as it describes venous stasis, not the arterial insufficiency that defines peripheral arterial disease’s pathophysiology. Choice C reason: Incompetent valves cause venous insufficiency, leading to increased venous pressure and edema, not peripheral arterial disease, which results from arterial plaque buildup. This statement is incorrect, as it pertains to venous, not arterial, pathology, misrepresenting the cause of the client’s condition. Choice D reason: Excessive ventricular stretching relates to heart failure, not peripheral arterial disease, which is caused by atherosclerosis in peripheral arteries. This statement is incorrect, as it describes cardiac dysfunction, not the arterial occlusion that impairs tissue oxygenation in peripheral arterial disease.