Final answer:
Discoloration and edema of the right ankle indicate a venous ulcer, contrasting with peripheral artery disease symptoms such as diminished pulsations or dependent rubor.
Step-by-step explanation:
Among the findings listed, the indication of a venous ulcer rather than an arterial ulcer is discoloration and edema of the right ankle. Venous ulcers are often associated with conditions that affect the venous circulation, like varicose veins and chronic venous insufficiency, leading to edema and discoloration due to stagnation of blood and increased pressure in the veins. On the other hand, symptoms like diminished peripheral pulsations, atrophy of the skin, hair loss, and dependent rubor are more characteristic of peripheral artery disease (PAD), where there is poor arterial blood flow.