The Nurse Is Instructing the Nursing Assistant to Prevent Pressure

The nurse is instructing the nursing assistant to prevent pressure ulcers in a frail older patient. Which action indicates the nursing assistant has understood the nurse's teaching?

A) Bathing and drying the skin vigorously to stimulate circulation
B) Keeping the head of the bed elevated 30 degrees
C) Limiting intake of fluid and offer frequent snacks
D) Turning the patient at least every 2 hours