Which sign is most likely to be present in an infant with increased intracranial pressure?

Which sign is most likely to be present in an infant with increased intracranial pressure?

• A. increased hunger
• B. drowsiness
• C. papilledema
• D. blurred vision

Answer: (B)

In infants, changes in level of consciousness are among the earliest and most reliable signs of increased intracranial pressure. When the skull is in a closed, developing container, elevated pressure quickly affects brain function, leading to a sleepy, less responsive state or lethargy. This decreased alertness often accompanies poor feeding and sometimes vomiting, reflecting global CNS depression rather than a focal deficit. Papilledema, while a sign of raised ICP, typically develops over time with sustained elevation and can be difficult to detect reliably in infants because examining the swollen optic disc is challenging in this age group. Blurred vision is hard to assess in an infant who cannot report visual symptoms, and increased hunger is not a typical indicator of intracranial pressure changes. Therefore, drowsiness best fits the common early presentation of ICP in infants.

In infants, changes in level of consciousness are among the earliest and most reliable signs of increased intracranial pressure. When the skull is in a closed, developing container, elevated pressure quickly affects brain function, leading to a sleepy, less responsive state or lethargy. This decreased alertness often accompanies poor feeding and sometimes vomiting, reflecting global CNS depression rather than a focal deficit.

Papilledema, while a sign of raised ICP, typically develops over time with sustained elevation and can be difficult to detect reliably in infants because examining the swollen optic disc is challenging in this age group. Blurred vision is hard to assess in an infant who cannot report visual symptoms, and increased hunger is not a typical indicator of intracranial pressure changes. Therefore, drowsiness best fits the common early presentation of ICP in infants.