Which sign is most concerning for increased intracranial pressure in a child?

• A. Papilledema
• B. Lethargy or confusion with vomiting
• C. Decreased responsiveness
• D. Irritability

Answer: (C)

When ICP rises, the brain’s function begins to falter, and the level of consciousness becomes the most critical clue to how severely the brain is affected. A child who is less responsive or not waking to stimuli indicates global brain dysfunction and possible brainstem compromise, which can quickly progress to herniation if not treated. This makes decreased responsiveness the most urgent sign, requiring immediate assessment and intervention.

Papilledema shows up when ICP has been elevated for a while and isn’t as useful for detecting acute changes. Vomiting with lethargy suggests ICP involvement but doesn’t by itself prove a current, severe decline in brain function. Irritability is a non-specific sign common in many pediatric issues and, while it can be present, does not convey the same level of immediate danger as a clear drop in responsiveness.