A nurse in the intensive care unit is planning care for a client who has a closed head injury. The client's intracranial pressure (ICP) is being monitored via an intraventricular catheter. Which of the following actions should the nurse include in the plan of care?

Rationale: A. Suction the client every 2 hr: Frequent suctioning can increase intracranial pressure due to stimulation of the airway and coughing reflex. Suctioning should be performed only when necessary and with careful monitoring of ICP, rather than routinely every 2 hours. B. Maintain ICP at 20 mm Hg: Normal ICP ranges from 5 to 15 mm Hg. An ICP of 20 mm Hg or higher indicates increased intracranial pressure and requires intervention. Planning to maintain ICP at this elevated level is unsafe and not appropriate for care planning. C. Avoid overstimulation of the client: Minimizing noise, unnecessary procedures, and environmental stimuli helps prevent spikes in ICP. Overstimulation can increase cerebral metabolic demand and worsen intracranial hypertension, so this intervention supports ICP management and neurologic stability. D. Keep the client in a supine position: Supine positioning can impair venous drainage from the brain, potentially increasing ICP. Elevating the head of the bed to 30 degrees while maintaining spinal precautions is preferred to promote venous outflow and reduce intracranial pressure.