During a mass shooting at a school, which patient should be treated first in triage?

• A. Single gunshot wound to chest; awake; sucking sound from wound (Immediate life-threatening but treatable)
• B. Multiple gunshot wounds; pale and moist (Severe, needs urgent treatment)
• C. Open fracture to left leg; anxious and crying (Serious but can wait)
• D. No gunshot wounds; abrasions and scratches (Minor injuries)

Answer: (A)

In mass casualty triage, you treat the patient who is in the most immediate danger of dying but who can be saved with rapid intervention. A gunshot wound to the chest with a sucking sound is a sign of an open pneumothorax, which directly compromises breathing. If not addressed right away, breathing can deteriorate quickly and the patient can die within minutes. The correct move is to provide immediate care to seal the wound and support breathing, making this patient the top priority.

The other patients, while serious, do not present an airway/breathing crisis requiring instant intervention. Multiple wounds with signs of shock are urgent but usually require rapid stabilization and ongoing treatment rather than the immediate, life-saving maneuver needed for an open chest wound. An open leg fracture with anxiety, and minor abrasions, are less urgent and can wait briefly.