Free BCEN Certified Flight Registered Nurse (CFRN) Practice Question

The presentation of irritability, vomiting, and a bulging fontanelle in an infant strongly suggests increased intracranial pressure (ICP). This is a critical condition often caused by head trauma, which requires immediate medical attention. Although dehydration can present with vomiting, it would not typically cause a bulging fontanelle. Meningitis could present with similar signs but less likely following a fall. Gastroenteritis usually presents with vomiting and diarrhea but does not cause a bulging fontanelle.