Define flail chest and its prehospital management priorities.

• A. Segment of chest wall moves paradoxically due to multiple rib fractures; management includes analgesia, airway support, and stabilization of the chest with bulky dressings or devices while ensuring ventilation.
• B. A single rib fracture with localized pain.
• C. Pneumothorax due to rib fracture.
• D. Chest wall contusion without rib fracture.

Answer: (A)

Flail chest happens when multiple adjacent ribs are fractured, creating a segment of the chest wall that moves oppositely to the rest of the chest during breathing. This paradoxical movement signifies a major chest injury and can severely impair ventilation, so the prehospital focus is on preserving airway and breathing while stabilizing the chest to improve ventilation. Provide high-flow oxygen and ensure the airway is open; assist or support breathing as needed, and give analgesia to allow the patient to take deep breaths and clear secretions. Stabilizing the flail segment with bulky dressings or similar devices helps reduce the abnormal movement and makes ventilation more effective until definitive care is available. Always monitor for associated injuries such as pneumothorax or pulmonary contusion and prepare for rapid transport, with readiness to advance airway management if ventilation worsens.