Final answer:
The nurse should isolate the child in a private room and wear a gown and gloves when caring for the child to prevent the risk of transmitting infection to other patients.
Step-by-step explanation:
In order to prevent the risk of transmitting infection to other patients, the nurse should isolate the child in a private room (option a) and wear a gown and gloves (option b) when caring for the child.
Isolating the child in a private room helps to prevent the spread of infectious agents to other patients, while wearing a gown and gloves minimizes the risk of surface and equipment contamination.