What is a sign of anaphylactic shock?

A sign of anaphylactic shock includes rapid swelling of the throat or tongue and difficulty breathing. Anaphylactic shock is a severe, life-threatening allergic reaction that can occur rapidly after exposure to an allergen. The swelling in the throat or tongue can impede airflow, leading to respiratory distress, which is a critical and time-sensitive situation requiring immediate medical attention.

Recognizing these symptoms is crucial for early intervention, such as administering epinephrine, which can reverse the life-threatening effects. The other options, while they may pertain to other medical conditions or reactions, do not characterize anaphylactic shock in the same urgent manner. Subtle swelling of the extremities, unexplained hypothermia, and gradual onset of fatigue are not typically associated with the immediate and severe reactions seen in anaphylaxis.