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. Venous insufficiency ulcers: Typically present with dark discoloration and edema, but not specifically with changes in color with elevation and dependency. B. Arterial insufficiency ulcers: Pale feet when elevated and dark red when dependent are classic signs of arterial insufficiency. These changes in color are due to poor blood flow. C. Neuropathic ulcers: Usually associated with diabetes and often occur on pressure points, not typically related to color changes with elevation. D. Deep vein thrombosis: While DVT can cause swelling and pain, it does not usually present with color changes that are dependent on the position of the foot.