Intrinsic asthma — intrinsic is non-allergic and can be triggered by which of the following?

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Prepare for the National Association of Nutritional Professionals (NANP) Domain IV Test. Review flashcards and multiple choice questions with detailed explanations. Get exam-ready!

Multiple Choice

Intrinsic asthma — intrinsic is non-allergic and can be triggered by which of the following?

Explanation:
Intrinsic asthma is non-allergic, so its triggers are non-specific irritants rather than allergens. Cold air fits this pattern because inhaling cold, dry air cools and dries the airways, promoting bronchial smooth muscle contraction and airway hyperreactivity. Allergens such as pollen, animal dander, and dust mites provoke IgE-mediated allergic responses and are typical triggers for allergic (extrinsic) asthma, not intrinsic. Therefore, cold air is the best answer.

Intrinsic asthma is non-allergic, so its triggers are non-specific irritants rather than allergens. Cold air fits this pattern because inhaling cold, dry air cools and dries the airways, promoting bronchial smooth muscle contraction and airway hyperreactivity. Allergens such as pollen, animal dander, and dust mites provoke IgE-mediated allergic responses and are typical triggers for allergic (extrinsic) asthma, not intrinsic. Therefore, cold air is the best answer.

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