Which action best describes epinephrine use during an on-board allergic reaction with airway involvement?

• A. Wait for symptoms to worsen before acting.
• B. Administer epinephrine per protocol, call EMS, monitor and prepare for possible additional treatment.
• C. Give antihistamines only and avoid epinephrine.
• D. Stop treatment and wait for a physician to arrive.

Answer: (A)

In an on-board allergic reaction with airway involvement, acting quickly with epinephrine is essential. Epinephrine rapidly reduces airway swelling and bronchoconstriction, helping to prevent progression to life-threatening anaphylaxis. Administer epinephrine per the aircraft’s protocol immediately, then call EMS or activate the emergency medical response, while you monitor the patient’s airway, breathing, and circulation. Be prepared for additional treatment as needed.

Waiting to see if symptoms worsen before acting is dangerous because airway obstruction can develop or worsen rapidly. Antihistamines alone do not reverse the dangerous effects on the airway, and delaying treatment or waiting for a physician to arrive is not appropriate in this urgent setting.