A nurse is caring for an infant whose guardian reports intermittent vomiting for several days. Findings upon admission: Exhibits Which of the following actions should the nurse take? (Select all that apply)

Implement contact precautions.

Measure the infant's head circumference.

Weigh the infant

Monitor the infant's intake and output.

Offer the infant small, frequent feeding of thickened liquids.

Evaluate the infant's pain level using the FACES scale.

Plan to administer a plain water enema to the infant.