Recognition and treatment of anaphylaxis in hospital.

Anaphylaxis is a life-threatening, generalized or systemic hypersensitivity reaction characterized by rapidly developing airway, and/or breathing, and/or circulation compromise, usually associated with skin and mucosal changes. Summoning expert help, positioning the patient appropriately, administering high-flow oxygen, and administering adrenaline by intramuscular injection are the key initial treatment and management options. This article draws on the literature, including published guidelines, to discuss the recognition and treatment of anaphylaxis in hospital.