What is a common consequence of severe allergic reactions?

A common consequence of severe allergic reactions is anaphylaxis. This is a life-threatening, systemic hypersensitivity reaction that can occur rapidly, often within minutes of exposure to an allergen. Anaphylaxis is characterized by a range of symptoms that may include difficulty breathing, swelling of the face and throat, hives, and a drop in blood pressure, which can lead to shock.

Understanding anaphylaxis is crucial for emergency medical dispatch because it requires immediate intervention, such as the administration of epinephrine, to reverse the symptoms and stabilize the patient. Prompt recognition of potential anaphylactic reactions is vital for the safety and effectiveness of the emergency response.

The other options, while serious medical conditions, do not directly result from allergic reactions in the same way that anaphylaxis does.