What is a primary symptom of anaphylactic shock?

Anaphylactic shock is a severe, life-threatening allergic reaction that can occur rapidly after exposure to an allergen. A primary symptom is wheezing and trouble breathing, which indicates that the airway is constricting due to the allergic response. This respiratory distress arises from bronchoconstriction and can also be accompanied by swelling of the throat and tongue, making it difficult for the individual to breathe.

Recognizing this symptom is critical, as it requires immediate medical attention, typically with an epinephrine injection, to reverse the dangerous effects on the respiratory system. While other symptoms such as abdominal pain, skin rash, and itching can occur during an anaphylactic reaction, the respiratory symptoms are indicative of the urgency and severity of the shock itself.