Elevating the head of the bed to 30 degrees in ICP management is intended to?

• A. Increase cerebral perfusion pressure (CPP).
• B. Improve venous drainage and reduce edema.
• C. Decrease oxygenation.
• D. Increase intracranial blood volume.

Answer: (B)

Promoting venous outflow from the brain by raising the head of the bed to about 30 degrees reduces intracranial pressure. When the head is elevated, cerebral venous blood drains more effectively through the jugular system, lowering venous pressure inside the skull. That helps decrease cerebral edema and lowers ICP, which supports maintaining adequate cerebral perfusion. It’s not aimed at improving oxygenation, and it doesn’t increase intracranial blood volume; the primary goal is to facilitate drainage and reduce edema to lower ICP.