What initial assessment should be performed on a patient with a suspected head injury?

In cases of suspected head injury, ensuring airway patency is a critical first step in the initial assessment. Patients with head injuries may experience a decreased level of consciousness or altered mental status, which can compromise their ability to maintain a clear airway. If the airway is obstructed, it can lead to inadequate oxygenation and respiratory failure, making it imperative to assess and secure the airway immediately. This is a foundational principle in emergency care, as the airway must be prioritized before addressing other issues or performing further assessments.

Monitoring blood glucose levels and checking for signs of cardiac arrest are important in the broader context of patient assessment, but they come after ensuring that the airway is clear and stable. Allergic reactions are typically not directly relevant to head injuries unless there are specific indicators suggesting such a condition, which is rare in the context of traumatic brain injuries. Overall, maintaining a patent airway is paramount to patient survival and effective management in emergency situations involving head trauma.