The Nurse Is Caring for a Patient with Aortic Regurgitation

The nurse is caring for a patient with aortic regurgitation. Which interventions should the nurse implement?

A) Encourage the patient to perform all activities of daily living at once.
B) Schedule activities with periods of rest.
C) Elevate the head of bed (HOB) to 30 degrees.
D) Apply oxygen at 2 liters/nasal cannula.