Final answer:
The nurse should suggest decreasing their sodium intake to less than 1,500 mg/day as the one measure recommended by the DASH program that would have the biggest impact.
Step-by-step explanation:
The nurse should suggest decreasing their sodium intake to less than 1,500 mg/day as the one measure recommended by the DASH program that would have the biggest impact. The DASH program emphasizes reducing sodium intake because a high-sodium diet can contribute to hypertension. By reducing sodium intake, they can help lower their blood pressure and reduce their risk of cardiovascular disease.