Which of the following best describes general steps to manage suspected elevated intracranial pressure in the acute setting?

• A. Elevate head of bed
• B. Avoid hypotension
• C. Hyperosmolar therapy (mannitol/hypertonic saline)
• D. All of the above

Answer: (D)

In the acute management of suspected elevated intracranial pressure, the goal is to protect brain tissue by improving blood flow while actively lowering pressure. Elevating the head of the bed to about 30 degrees helps venous drainage from the brain, which can reduce intracranial pressure without compromising arterial inflow. Keeping blood pressure from dropping is crucial because cerebral perfusion pressure (CPP) depends on the mean arterial pressure minus the ICP; even short drops in MAP can worsen brain perfusion and injury. Hyperosmolar therapy, using agents like mannitol or hypertonic saline, rapidly lowers ICP by creating an osmotic gradient that pulls water out of swollen brain tissue, providing quick relief of pressure. Taken together, these steps address both the mechanical reduction of ICP and the maintenance of adequate cerebral blood flow, representing a comprehensive initial approach in this scenario.