Final answer:
To prevent heat loss by conduction, the nurse should wrap the newborn in a warm blanket.
The correct answer is D.
Step-by-step explanation:
To prevent heat loss by conduction, the nurse should implement the intervention of wrapping the newborn in a warm blanket. Conduction is the transfer of heat between two objects in direct contact with each other. By wrapping the newborn in a warm blanket, the nurse creates a barrier between the newborn and the cooler environment, preventing heat loss through conduction.