Final answer:
Agitation following a skull fracture requires immediate attention by a nurse as it may indicate increased intracranial pressure, which is a potential medical emergency.
Step-by-step explanation:
Among the signs and symptoms related to a skull fracture, the finding that requires a nurse's immediate attention is B) Agitation. Agitation can be an indicator of increased intracranial pressure, which is a medical emergency. Symptoms like lethargy and ataxia (b. slowed movements, balance and posture problems) are concerning but are not as immediate as a change in the level of consciousness or behavior, which can signify a rapid deterioration. While hearing loss (c. Hearing loss resulting from damage to bones of the middle ear) can accompany a skull fracture, it is not as immediately life-threatening as other neurological changes.