Which nursing intervention is contraindicated in a patient with increased intracranial pressure (ICP)?

A. Applying a tight cervical collar is correct as contraindicated because a tight or improperly fitted collar can increase ICP by restricting venous drainage from the brain. Proper spinal immobilization is important in trauma patients, but collars should be appropriately sized and not overly tight, and adjustments should be made to avoid raising ICP. B. Monitoring ABGs is incorrect because assessing arterial blood gases is essential in patients with increased ICP. ABGs help evaluate oxygenation and carbon dioxide levels, which directly affect cerebral blood flow and ICP. C. Administering antipyretics for fever is incorrect because controlling fever is important; hyperthermia increases cerebral metabolism and can worsen ICP. Antipyretics help reduce metabolic demand and prevent ICP spikes. D. Elevating the head of bed to 30 degrees is incorrect because head-of-bed elevation promotes venous drainage from the brain, which helps reduce ICP. This is a standard nursing intervention in patients with increased ICP.