immunology allergic disorders
Anaphylaxis
Prevention of Anaphylaxis
Primary prevention of anaphylaxis is avoidance of known triggers. Immunotherapy is used for allergen triggers that cannot reliably be avoided (eg, insect stings). Patients with past Allergic-type contrast reactions should not be reexposed. When exposure is absolutely necessary, patients are given 3 doses of Patients with an anaphylactic reaction to insect stings, foods, or other known substances should wear an alert bracelet and carry a prefilled, self-injectingepinephrinesyringe (containing 0.3 mg for adults and 0.15 mg for children) and oral antihistamines for prompt self-treatment after exposure. If a severe reaction occurs, patients should be advised to use these treatments as quickly as possible and then go to the emergency department. There, they can be closely monitored and treatment can be repeated or adjusted as needed. 