Final answer:
The nurse should immediately inform the neurosurgeon of the patient's change in condition. Rapid neurological assessment is crucial in an emergency to facilitate quick treatment, particularly for acute events such as strokes.
Step-by-step explanation:
When a patient who has sustained a head injury begins to exhibit new symptoms such as slurred speech and disorientation, it's critical to act quickly. The nurse's initial action should be to inform the neurosurgeon of the patient's status. This prompt response is necessary because a rapid assessment of neurological function can be extremely important in an emergency situation. Observations made during the neurological exam can help in determining whether a patient has sustained an acute event, such as a stroke, which requires speedy intervention to maximize the potential for recovery. Effective communication between the nurse, surgeon, and anesthesia professional is essential for the immediate review and management of the patient's care.