Final answer:
The nurse should include instruction C: Monitoring for signs of infection.
Step-by-step explanation:
The nurse should include instruction C: Monitoring for signs of infection.
For infants with a ventriculoperitoneal shunt, it is crucial to monitor for signs of infection, as this can be a potential complication. Signs of infection may include fever, swelling, redness, or drainage at the shunt site. Prompt recognition and treatment of infection can help prevent further complications.