What condition can increase ICP due to increased fluid in the brain?

Cerebral edema is a condition characterized by an accumulation of excess fluid in the brain tissue. This increase in fluid volume can occur for various reasons, such as injury, infection, or inflammation, and leads to swelling. As the brain occupies a fixed space within the skull, any increase in volume—whether from edema, a tumor, or bleeding—can elevate intracranial pressure (ICP). Elevated ICP can compromise brain function and lead to serious complications if not managed appropriately.

On the other hand, dehydration generally leads to a decrease in fluid volume within the body and does not contribute to increased ICP. Aspiration mainly affects the respiratory system and does not directly influence ICP. Hyperthermia can have various effects on the body, such as increased metabolic demands and potential for swelling, but it is not a direct cause of increased intracranial pressure through fluid accumulation. Thus, among the choices provided, cerebral edema is the condition that specifically leads to increased ICP due to fluid overload in the brain.