In a church bus rollover incident involving 30 passengers, who should receive the highest priority for treatment?

The individual with the highest priority for treatment is the 70-year-old woman who is having difficulty breathing with absent lung sounds on the right side. In emergency medicine, airway and breathing issues take precedence over other types of injuries. The absence of lung sounds suggests a potential life-threatening condition, such as a pneumothorax or significant injury to the lungs, that could lead to respiratory failure.

This patient is demonstrating signs of respiratory distress, which can rapidly deteriorate if not addressed promptly. In contrast, the other options involve less critical conditions. The 30-year-old man with a sprained ankle, while potentially painful and inconvenient, does not have a life-threatening condition. The 15-year-old girl with a mild headache is not in immediate danger, and the 5-year-old boy with a bruise on his arm is also stable. Thus, addressing the breathing difficulty in the elderly woman is essential for stabilizing her condition and preventing further complications.