Search results
Results from the WOW.Com Content Network
Type I hypersensitivity (or immediate hypersensitivity), in the Gell and Coombs classification of allergic reactions, is an allergic reaction provoked by re-exposure to a specific type of antigen referred to as an allergen. [1]
The treatment of immediate hypersensitivity reactions includes the management of anaphylaxis with intramuscular adrenaline (epinephrine), oxygen, intravenous (IV) antihistamine, support blood pressure with IV fluids, avoid latex gloves and equipment in patients who are allergic, and surgical procedures such as tracheotomy if there is severe ...
Anaphylactoid reaction, non-immune anaphylaxis, or pseudoanaphylaxis, is a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation. [ 10 ] [ 42 ] Non-immune anaphylaxis is the current term, as of 2018, used by the World Allergy Organization [ 42 ] with some recommending that the old ...
Management of drug allergy consists principally of avoidance or discontinuation of the causative drug. [6] Treatment is largely supportive and symptomatic. [6] It may consist of topical corticosteroids and oral antihistamines for cutaneous symptoms such as hives and itching. [6] Mild cutaneous reactions can be managed with antihistamines only. [6]
Cromolyn Nedocromil. Mast cell stabilizers are medications used to prevent or treat certain allergic disorders. They block mast cell degranulation, stabilizing the cell and thereby preventing the release of histamine and related mediators.
Anaphylatoxins are able to trigger degranulation (release of substances) of endothelial cells, mast cells or phagocytes, which produce a local inflammatory response.If the degranulation is widespread, it can cause a shock-like syndrome similar to that of an allergic reaction.
In Australia, hospital admission rates for food-induced anaphylaxis increased by an average of 13.2% from 1994-2005. [95] One possible explanation for the rise in food allergy is the "old friends" hypothesis, which suggests that non-disease-causing organisms, such as helminths , could protect against allergy.
The majority of individuals who receive a sting from an insect experience local reactions. It is estimated that 5-10% of individuals will experience a generalized systemic reaction that can involve symptoms ranging from hives to wheezing and even anaphylaxis. [1]