anaphylaxis

(noun)

A severe and rapid systemic allergic reaction to an allergen, causing a constriction of the trachea, preventing breathing; anaphylactic shock.

Related Terms

Examples of anaphylaxis in the following topics:

  • Signs and Symptoms of Shock

    • With anaphylaxis, hives may present on the skin, and there may localized edema, especially around the face, and weak and rapid pulse.
    • Hives and flushing on the back of a person with anaphylaxis.

  • Allergies

    • In some people, severe allergies to environmental or dietary allergens or to medication may result in life-threatening reactions called anaphylaxis.
    • A response can take the the form of a rash (urticaria, also known as hives), or, worse—anaphylaxis (a serious reaction that can result in death).

  • Hypersensitivity

    • Associated disorders: Atopy, anaphylaxis, asthma.