Which symptom is commonly associated with anaphylaxis?

Sudden swelling of the throat is commonly associated with anaphylaxis because it represents a significant and dangerous manifestation of an allergic reaction. Anaphylaxis is a severe, life-threatening reaction that can occur rapidly after exposure to an allergen, such as certain foods, medications, or insect stings.

During anaphylaxis, the immune system responds aggressively, leading to the release of chemicals that cause various symptoms. One of the hallmark features of this reaction is the swelling (angioedema) that can occur in the throat, tongue, and face, potentially obstructing the airway and leading to respiratory distress. This symptom is critical to recognize because it signifies a potential airway compromise, which is a medical emergency requiring immediate intervention, typically in the form of epinephrine administration.

Recognizing this symptom as part of anaphylaxis helps paramedics and other healthcare providers respond swiftly to ensure the patient's airway remains open and to provide the necessary treatment to reverse the anaphylactic response.