Final answer:
Normal pressure hydrocephalus is caused by an obstruction in the flow of cerebrospinal fluid, leading to ventricle enlargement and increased intracranial pressure.
Explanation:
Normal pressure hydrocephalus is caused by an obstruction in the normal flow of cerebrospinal fluid, leading to the enlargement of ventricles and increased intracranial pressure. This condition can result in symptoms like altered mental status, seizures, and headaches.
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