A nurse is reinforcing discharge teaching with a client who was recently diagnosed with heart failure. Which of the following statements should the nurse include in the teaching?

A. "Consume a low-residue diet.": Low-residue is not routinely recommended for heart failure-this is unrelated to fluid/sodium management. B. "Begin exercising twice per week.": General activity is encouraged, but twice weekly is insufficient as a standard instruction; exercise plans should be individualized and usually more frequent. C. "Weigh yourself every 2 days.": Not ideal - clients with heart failure should weigh themselves daily at the same time to detect early fluid retention. D. "Limit sodium intake to 3.5 g daily.": Limiting sodium reduces fluid retention and symptoms of HF. Sodium restriction is recommended to help control fluid retention; typical guidance is stricter - often <2–3 g/day.