Question: A school nurse is assessing a child and discovers Koplik spots on the child's buccal mucosa. Which of the following actions should the nurse take? a. Check the child's classmates for parotid gland enlargement. b. Instruct the caregivers to increase the client's Vitamin B12 intake. c. Ask the caregivers if the child recently used alcohol-based mouthwash. d. Review the immunization records of the child's classmates.