Anaphylactic shock

Definition

Anaphylactic shock is a severe, potentially life-threatening allergic reaction that causes widespread inflammation and blood vessel dilation, leading to a dramatic decrease in blood pressure. This condition can compromise airways and vital organ function if not treated immediately.

Related terms

Allergen: A substance that can cause an allergic reaction by stimulating the immune response more than necessary.

Epinephrine:

A hormone also known as adrenaline, used as a primary treatment for anaphylactic shock because it helps narrow blood vessels and open airways in the lungs.

Hypotension: Abnormally low blood pressure, which is a key feature of anaphylactic shock due to vasodilation caused by the severe allergic reaction