Which assessment finding would be concerning for a 4-month-old infant with meningitis?

High-pitched crying in an infant can be a concerning sign, particularly in the context of meningitis. Meningitis can cause increased intracranial pressure and irritation of the meninges, leading to changes in an infant's normal behavior and crying patterns. A high-pitched, inconsolable cry is often associated with neurological distress and can indicate a more severe underlying condition. In cases of meningitis, this type of crying reflects the infant's discomfort and suggests potential complications that need further evaluation and intervention.

On the other hand, a depressed anterior fontanel may also be relevant in cases of dehydration or increased intracranial pressure but isn't exclusively indicative of meningitis. The presence of a rooting reflex is a normal developmental milestone at 4 months and does not signal any immediate concern. Lastly, normal feeding patterns in an infant are generally a positive sign, indicating that the infant is eating appropriately and may not be exhibiting signs of illness or distress at that moment. Thus, high-pitched crying stands out as a significant indicator of possible meningitis and requires further investigation.