What is a severe allergic reaction also known as?

A severe allergic reaction is known as anaphylaxis. This is a life-threatening response that can occur rapidly after exposure to an allergen, which may include foods, insect stings, medications, or other substances. During anaphylaxis, the body can react with symptoms such as difficulty breathing, swelling of the throat, drop in blood pressure, rapid heartbeat, and even loss of consciousness. The severity of the reaction requires immediate medical intervention, typically with an injection of epinephrine, to reverse the symptoms and stabilize the individual.

Hypersensitivity refers to an exaggerated immune response to an antigen but is a broader term that encompasses various types of allergic reactions, not specifically the most severe form. Shock is a state of inadequate blood flow and is not explicitly synonymous with an allergic reaction; it can be a consequence of anaphylaxis. An asthma attack is related to respiratory issues and can be triggered by allergens, but it is not equivalent to anaphylaxis. Understanding the specifics of anaphylaxis and its distinct characteristics helps in recognizing and responding effectively to severe allergic reactions.