The nurse is developing a teaching plan for a client with peripheral arterial disease (PAD) who has a history of a myocardial infarction (MI) and smokes two packs of cigarettes daily. Which instruction has the greatest priority?

Choice A reason: Keeping toenails trimmed short is important for foot care, especially in clients with PAD, but it is not the highest priority.Choice B reason: Applying a heating pad to soothe leg pain can provide temporary relief but does not address the underlying issue of PAD or reduce cardiovascular risk.Choice C reason: Enrolling in a smoking cessation program is the highest priority. Smoking significantly exacerbates PAD and increases the risk of further cardiovascular events, including heart attacks. Quitting smoking is crucial for improving vascular health and reducing the risk of complications.Choice D reason: Reducing intake of high saturated fats and salt is important for overall cardiovascular health but is not as immediate or impactful as smoking cessation in reducing the risk of complications from PAD and MI.