What is the proper handling of a patient who experiences a sudden severe allergic reaction with airway involvement on board?

• A. Wait to see if symptoms improve without intervention.
• B. Give antihistamines only and do nothing else.
• C. Move the patient to a different seat and monitor.
• D. Administer epinephrine per protocol, call EMS, monitor and prepare for possible additional treatment.

Answer: (D)

When a patient on board experiences a sudden, severe allergic reaction with airway involvement, the priority is to treat suspected anaphylaxis quickly. Epinephrine is the first-line, life-saving treatment because it rapidly reverses airway swelling and improves blood pressure by constricting vessels and relaxing airway muscles. Administering epinephrine per the established protocol addresses the underlying threat to breathing and circulation far more effectively than any other single measure.

Delaying treatment or relying on antihistamines alone won’t stop the airway edema or shock risk, and simply moving the passenger or monitoring without intervention won’t prevent deterioration. After giving epinephrine, call for EMS and activate the flight medical protocol so urgent professional care can arrive, and continue to monitor the patient closely. Be prepared to provide additional treatment if symptoms persist or recur, and use supplemental oxygen if available while arranging for rapid transport to definitive care.