Prepare for your CVP and GI Pathology Exam. Study using flashcards and multiple choice questions with hints and explanations to excel in your test.

Multiple Choice

The category of asthma described by a genetic predisposition to make IgE antibodies is known as?

Atopy describes a genetic tendency to produce IgE antibodies in response to common environmental allergens, leading to IgE-mediated allergic reactions. In asthma, when someone has this predisposition, exposure to things like dust mites, pollen, or animal dander triggers allergen-specific IgE production. Those IgE molecules bind to mast cells and basophils; upon re-exposure, the allergen cross-links the bound IgE, causing degranulation and release of mediators like histamine and leukotrienes. This drives bronchoconstriction, mucus production, and airway inflammation—the hallmark of atopic (allergic) asthma. The other categories are driven by different mechanisms: non-atopic asthma lacks this IgE-mediated basis; occupational asthma arises from workplace sensitizers; exercise-induced asthma is triggered by exercise and airway hyperreactivity rather than a predisposition to IgE. So the described category is atopic asthma.

Atopy describes a genetic tendency to produce IgE antibodies in response to common environmental allergens, leading to IgE-mediated allergic reactions. In asthma, when someone has this predisposition, exposure to things like dust mites, pollen, or animal dander triggers allergen-specific IgE production. Those IgE molecules bind to mast cells and basophils; upon re-exposure, the allergen cross-links the bound IgE, causing degranulation and release of mediators like histamine and leukotrienes. This drives bronchoconstriction, mucus production, and airway inflammation—the hallmark of atopic (allergic) asthma. The other categories are driven by different mechanisms: non-atopic asthma lacks this IgE-mediated basis; occupational asthma arises from workplace sensitizers; exercise-induced asthma is triggered by exercise and airway hyperreactivity rather than a predisposition to IgE. So the described category is atopic asthma.