Intervention for Hyponatremia in Heart Failure Patient

A 56-year-old patient with heart failure has been admitted to the hospital with worsening shortness of breath and edema. The nurse assesses the patient and notes they have a history of chronic kidney disease. Laboratory results indicate hyponatremia with a sodium level of 130 mEq/L. Which of the following interventions should the nurse prioritize to address the patient's fluid and electrolyte imbalance?