The Nurse Is Caring for a Severely Ill Patient with Acquired

The nurse is caring for a severely ill patient with acquired immune deficiency syndrome (AIDS) who now requires ventilator support.Which intervention is considered futile?

A) Administering the influenza vaccine.
B) Providing oral care every 5 hours.
C) Applying fentanyl patches as needed for pain.
D) Supporting the patient's lower extremities with pillows.