The Nurse Is Caring for a Patient on Mechanical Ventilation

The nurse is caring for a patient on mechanical ventilation with an endotracheal tube.Which nursing interventions will help prevent ventilator-associated pneumonia (VAP) ?

A) Changing the patient's position every 2 hours
B) Keeping the head of the bed elevated 30 to 45 degrees
C) Providing oral care with a toothette every 8 hours
D) Keeping the head flat during and for 30 minutes after enteral feedings