Which foot care instruction is most important for the practical nurse (PN) to reinforce that minimizes a long-term complication for a client who is newly diagnosed with type 2 diabetes mellitus (DM)?

A. Reporting any foot injury or sore that does not readily heal is the most crucial instruction for minimizing long-term complications in diabetes management. Poor circulation and neuropathy in diabetic patients can lead to serious complications from minor foot injuries, so prompt medical evaluation is essential for preventing severe outcomes. B. Drying feet thoroughly between toes is important for preventing fungal infections, but it is a standard part of foot care rather than a primary measure for preventing long-term complications like ulcers or infections. C. Ensuring that shoe size fits to minimize rubbing and blisters is important for foot health, but it is not as critical as promptly addressing any injuries or sores that may arise. D. Monitoring fingerstick glucose daily for tight control is necessary for diabetes management but does not directly address foot care issues. It is important for overall disease management but not specifically for immediate foot care concerns.