Which of the following is a common symptom of anaphylaxis?

The correct answer highlights that a severe allergic reaction leading to difficulty breathing is a common symptom of anaphylaxis. Anaphylaxis is a life-threatening reaction that occurs rapidly after exposure to an allergen, such as food, medications, or insect stings. The body releases a large amount of histamine and other chemicals, causing symptoms such as swelling of the airway, throat constriction, and bronchodilation, which directly lead to the difficulty in breathing.

Understanding this is crucial, as recognizing the signs of anaphylaxis can ensure timely and appropriate medical intervention, which can be lifesaving. Other symptoms can include hives, swelling, rapid pulse, and gastrointestinal distress, all of which indicate the severity of the reaction that requires immediate treatment, usually with epinephrine.

In contrast, the other options do not accurately represent the acute and severe nature of anaphylaxis. Persistent headaches, gradual fatigue, and minor skin irritation can result from a variety of non-life-threatening conditions and do not signify the urgent medical emergency that anaphylaxis represents. Recognizing the symptoms of anaphylaxis is essential for effective patient care and safety.