Final answer:
Protecting the client's head and feet from cold air should be included in the plan of care as a precaution to avoid hypothermia.
Step-by-step explanation:
Protecting the client's head and feet from cold air should be included in the plan of care as a precaution to avoid hypothermia. When exposed to cold temperatures, the body responds by reducing blood circulation to the extremities in order to prevent blood from cooling there and to maintain the warmth of the body's core. This helps to prevent hypothermia, a dangerous condition that can lead to confusion, lethargy, and eventual loss of consciousness and death.