A nurse is assessing an infant following a motor vehicle crash. Which of the following findings should the nurse monitor to identify increased intracranial pressure?

A. Brisk pupillary reaction indicates normal neurological function and does not suggest increased intracranial pressure (ICP). B. Depressed fontanels are associated with dehydration, not increased ICP; bulging or tense fontanels are the concerning finding. C. Increased sleepiness or difficulty arousing the infant is a classic early sign of increased ICP, reflecting cerebral dysfunction. D. Tachycardia may occur as a compensatory response to stress or pain but is not a reliable early indicator of increased ICP; bradycardia is more typical as ICP rises.