A nurse is caring for a client who has increased intracranial pressure (ICP). Which of the following interventions should the nurse take?

Choice A reason: Controlled coughing increases intrathoracic pressure, worsening ICP by impeding cerebral venous return. This is contraindicated, making it incorrect compared to measures that reduce ICP like bed elevation. Choice B reason: Elevating the head of the bed to 30 degrees promotes venous drainage, reducing ICP. This is a standard intervention for managing increased ICP, making it the correct action for the client. Choice C reason: Encouraging 2000 mL fluid intake risks fluid overload, increasing ICP. Fluid restriction may be needed, making this incorrect for managing a client with elevated intracranial pressure. Choice D reason: A brightly lit environment can increase agitation, potentially raising ICP. A calm, dim setting is preferred, making this incorrect compared to elevating the head to reduce pressure.