What protocol should be followed for managing a suspected head injury in the absence of contraindications?

The correct protocol for managing a suspected head injury in the absence of contraindications is to provide supplemental oxygen. This approach is essential because patients with head injuries may experience hypoxia, and ensuring adequate oxygenation is critical to minimize secondary brain injury. Supplemental oxygen can improve cerebral oxygen delivery and may help prevent deterioration of the patient's neurological status.

When dealing with head injuries, the goal is to maintain adequate cerebral perfusion and prevent complications associated with decreased oxygen levels in the brain. Supplemental oxygen can be administered effectively in a prehospital or emergency care setting and is a foundational component of managing trauma cases.

This contrasts with other options. Administering IV fluids immediately might not be appropriate in cases where head trauma is involved, particularly without knowing the patient's volume status or when there are signs of increased intracranial pressure. Applying direct pressure to the head may not be suitable if there are signs of a skull fracture, as it could worsen bleeding or brain injury. Inserting a nasopharyngeal airway is not typically recommended for head injury patients unless they exhibit specific airway obstruction signs, as there might be concerns about basilar skull fractures. Therefore, providing supplemental oxygen stands out as the most appropriate and effective action in this situation.