Question: A 55-year-old diabetic male has a non-healing ulcer on his right big toe. His Ankle-Brachial Pressure Index (ABPI) is measured at 0.4. What does this value indicate regarding his surgical prognosis? Need Assignment Help? Question Answer a. Critical Limb Ischemia with high risk of limb loss b. Falsely elevated due to calcified vessels c. Mild disease, likely to heal with dressings d. Normal arterial flow e. Venous insufficiency only