A nurse is caring for an infant who is in contact isolation and received a blood transfusion. Which of the following actions is appropriate for the nurse to take to provide cost-effective care?

Returning unopened, unused equipment to the supply center is cost-effective and reduces waste. Items that enter a contact isolation room cannot be reused, so only bringing in what is needed reduces waste. Bringing formula only as needed is efficient, not stocking excess. Masks are not required for contact precautions (gown and gloves are used). Stocking a 2-day supply of diapers in the room is wasteful because unused items from isolation rooms must be discarded.