A 44-year-old man has come to the clinic with an exacerbated asthma attack, asthma exacerbation. He tells the nurse that his father and brother also suffer from asthma, as does his 15-year-old son
The nurse explains that there is most likely an allergic component based on a genetic predisposition. The specific allergen initiated by immunological mechanisms is usually mediated by what? A) Immunoglobulin A
B) Immunoglobulin M
C) Immunoglobulin G
D) Immunoglobulin E
D
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Allergic reactions characterized by the action of IgE antibodies and a genetic predisposition to allergic reactions are found in diseases like asthma. IgG is the most common immunoglobulin and is found in intravascular and intercellular compartments. IgA and IgM are found in mucous secretions.
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