Which of the following comorbidities represent the greatest risk for the development of foot ulcers in a diabetic client? Choose 3.

Foot ulcers in diabetic clients arise primarily from a combination of peripheral neuropathy, impaired circulation, and repeated trauma. Smoking history averaging 2 packs per day is a major risk factor because nicotine causes intense vasoconstriction and accelerates atherosclerosis, dramatically reducing perfusion to the distal extremities and impairing wound healing. Motor neuropathy related to improperly fitted shoes is directly causative: motor neuropathy alters foot architecture (clawing of toes, altered weight distribution), while ill-fitting footwear creates chronic pressure points that break down skin without the client noticing. Bilateral distal loss of pain sensation (sensory neuropathy) removes the protective warning mechanism — clients cannot feel friction, heat, or injury, so minor wounds progress undetected to ulcers. Diabetic renal problems with severely decreased GFR do worsen overall healing and increase infection risk, but renal impairment is not among the primary direct risk factors for ulcer initiation compared to neuropathy and ischemia. Previous diabetic ketoacidosis episodes reflect poor glycemic control, which contributes to neuropathy over time, but a history of DKA itself is not a direct or independent predictor of foot ulcer formation. The triad of smoking-related ischemia, motor neuropathy from footwear, and sensory loss together constitutes the most recognized and immediate risk constellation for diabetic foot ulcer development.