In prehospital evaluation after an explosion, injury to which organ is most likely to dominate initial pulmonary assessment?

In prehospital evaluation after an explosion, injury to which organ is most likely to dominate initial pulmonary assessment?

• A. Brain
• B. Lungs
• C. Liver
• D. Kidneys

Answer: (B)

Primary blast overpressure preferentially injures air-filled organs, with the lungs bearing the brunt of the shock wave. The rapid compression and expansion of the chest can cause pulmonary contusions, edema, alveolar rupture, and pneumothorax. Because the lungs are the most directly affected and give the earliest, most actionable signs of blast injury, the initial pulmonary assessment in the field is dominated by lung injury findings. This means you’re most focused on breathing adequacy, oxygen need, and signs like shortness of breath, abnormal breath sounds, chest wall tenderness, or subcutaneous emphysema, which point to lung trauma. While brain, liver, or kidney injuries can occur, they do not dictate the immediate pulmonary exam in the same way lung injury does.

Primary blast overpressure preferentially injures air-filled organs, with the lungs bearing the brunt of the shock wave. The rapid compression and expansion of the chest can cause pulmonary contusions, edema, alveolar rupture, and pneumothorax. Because the lungs are the most directly affected and give the earliest, most actionable signs of blast injury, the initial pulmonary assessment in the field is dominated by lung injury findings. This means you’re most focused on breathing adequacy, oxygen need, and signs like shortness of breath, abnormal breath sounds, chest wall tenderness, or subcutaneous emphysema, which point to lung trauma. While brain, liver, or kidney injuries can occur, they do not dictate the immediate pulmonary exam in the same way lung injury does.