During the physical assessment of the peripheral vascular system, a client's foot is pale when elevated and dark red when in the dependent position. The nurse is concerned that this client is at risk for developing:

A. Neuropathic ulcers: These ulcers are usually associated with diabetic neuropathy and not primarily with changes in skin color upon elevation or dependency. B. Venous insufficiency ulcers: These are more commonly associated with symptoms such as swelling, brown pigmentation, and ulcers typically around the ankles. C. Deep vein thrombosis: DVT is characterized by swelling, redness, and warmth, not typically by changes in skin color with position changes. D. Arterial insufficiency ulcers: The color changes (pale when elevated and dark red when dependent) are indicative of arterial insufficiency, which can lead to arterial ulcers due to poor blood flow.