anaphylaxis

Anaphylaxis

Page reviewed by Dr Elena Salagean What is anaphylaxis? Anaphylaxis is a systemic severe, life-threatening allergic reaction that can occur rapidly after exposure to an allergen that has triggered an immune system reaction. Due to its systemic nature, it affects several body systems, including the respiratory, cardiovascular, and gastrointestinal systems. Together with rashes, hives, angioedema…

allergen pronunciation and definition

Allergen

Page reviewed by Dr Elena Salagean An allergen is any substance, often harmless to most people, that can cause an allergic reaction in susceptible individuals. These reactions vary and occur when the immune system mistakenly identifies a normally harmless substance as a threat and mounts a defense against it. Allergy testing can be performed to…