Which of the following medications may be used to reduce cerebral edema?

Choice A: Respiratory status is the first priority, as it can affect the oxygenation and perfusion of the brain and other vital organs. The nurse should assess the rate, rhythm, depth, and quality of breathing, as well as the use of accessory muscles, chest expansion, and lung sounds.

Choice B: Alertness is not the first priority, but rather a component of the level of consciousness. The nurse should assess the patient's ability to open their eyes spontaneously or in response to stimuli, as well as their orientation to person, place, time, and situation.

Choice C: Motor response is not the first priority, but rather a component of the level of consciousness. The nurse should assess the patient's ability to move their limbs voluntarily or in response to stimuli, as well as their muscle strength, tone, and coordination.

Choice D: Verbal response is not the first priority, but rather a component of the level of consciousness. The nurse should assess the patient's ability to speak clearly and coherently, as well as their content and appropriateness of speech.

Choice A: Moving patient in a fast abrupt manner is incorrect because it can cause further damage to the spinal cord or other organs. It can also increase the risk of complications such as pressure ulcers, contractures, or fractures. The patient should be moved gently and carefully with proper alignment and support.

Choice B: Using neck brace or collar at patient's discretion is incorrect because it can cause skin irritation, infection, or pressure injuries. The neck brace or collar should be used only as prescribed by the physician and adjusted regularly to ensure a good fit and comfort.

Choice C: Repositioning patient if spine is stable and as indicated by physician is correct because it can prevent complications such as pressure ulcers, contractures, or respiratory infections. The patient should be repositioned every two hours or more frequently if needed, using pillows, wedges, or other devices to maintain proper alignment and relieve pressure.

Choice D: All of the above are incorrect because they do not follow the best practices for nursing intervention for patients with spinal cord injury. They can cause harm or discomfort to the patient and worsen their condition. The nurse should follow the physician's orders and the standards of care for spinal cord injury patients.