Anaphylaxis is a medical emergency because

• A. the victim's airway may swell and block breathing
• B. it always causes a rash
• C. it is not serious
• D. it always requires surgery

Answer: (A)

The main reason anaphylaxis is a medical emergency is that the airway can swell and block breathing. In a severe allergic reaction, swelling of the throat, tongue, or larynx can develop quickly, narrowing or shutting off air passages. This can lead to life-threatening trouble breathing or even suffocation if not treated right away with rescue medication like epinephrine and urgent medical care. Some people may not have a rash or hives, so you can’t rely on skin symptoms alone to recognize anaphylaxis. It isn’t treated with surgery; the priority is rapid airway support and emergency treatment, followed by transport to a hospital.