The advanced practice registered nurse (APRN) performs a routine check-up on a patient in the vascular surgery clinic. The APRN notices that they have a history of chronic arterial insufficiency. Which physical examination finding in the lower extremities would be expected?

Chronic arterial insufficiency occurs when there is reduced blood flow to the extremities due to narrowing or obstruction of the arteries, most commonly from peripheral arterial disease (PAD). Inadequate oxygen and nutrient delivery leads to tissue ischemia, especially in the lower limbs. Over time, the skin and surrounding structures undergo trophic changes because of poor perfusion. Physical examination findings help distinguish arterial insufficiency from venous disorders and guide management. Rationale: A. Bounding pulsations are not expected in chronic arterial insufficiency because arterial blood flow is reduced due to vessel narrowing or obstruction. Peripheral pulses are usually diminished, weak, or absent rather than strong and forceful. Bounding pulses are more commonly associated with hyperdynamic circulation or certain cardiovascular conditions, not ischemic limb disease. B. Normal temperature is not expected because decreased arterial perfusion causes the affected extremity to feel cool or cold to touch. Reduced circulation limits the delivery of warm oxygenated blood to the tissues. Clients with arterial insufficiency often report cold feet or sensitivity to temperature changes in the affected limb. C. Marked edema is more commonly associated with venous insufficiency rather than arterial insufficiency. In arterial disease, swelling is usually minimal unless another condition is present. Venous stasis causes pooling of blood and increased hydrostatic pressure, leading to significant edema, which is not the classic finding in arterial compromise. D. Thin, shiny, atrophic skin is a classic finding in chronic arterial insufficiency due to prolonged poor blood supply to the tissues. Lack of adequate oxygen and nutrients causes loss of subcutaneous tissue, hair loss, brittle nails, and smooth shiny skin. These trophic skin changes strongly suggest long-standing peripheral arterial disease.