NURSING 1211C Ch. 37 (38) Allergic Disorders.

Ch. 37 (38) Allergic Disorders 1. A patient with a family history of allergies has suffered an allergic response based on a genetic predisposition. This atopic response is usually mediated by what immunoglobulin? A) Immunoglobulin A B) Immunoglobulin M C) Immunoglobulin G D) Immunoglobulin E Ans: D Feedback: Atopy refers to allergic reactions characterized by the action of IgE antibodies and a genetic predisposition to allergic reactions. 2. An office worker takes a cupcake that contains peanut butter. He begins wheezing, with an inspiratory stridor and air hunger and the occupational health nurse is called to the office. The nurse should recognize that the worker is likely suffering from which type of hypersensitivity? A) Anaphylactic (type 1) B) Cytotoxic (type II) C) Immune complex (type III) D) Delayed-type (type IV) Ans: A Feedback: The most severe form of a hypersensitivity reaction is anaphylaxis. An uoften explosive in onset, anaphylaxis is characterized by edema in manyaccompanied by hypotension, bronchospasm, and cardiovascular collaphypersensitivity occurs when the system mistakenly identifies a normal complex (type III) hypersensitivity involves immune complexes formedassociated with systemic lupus erythematosus, rheumatoid arthritis, certendocarditis. Delayed-type (type IV), also known as cellular hypersensian allergen. 3. A patient is learning about his new diagnosis of asthma with the asthma prevent the onset of acute asthma exacerbations? A) Diphenhydramine (Benadryl) B) Montelukast (Sing