Factors that can contribute to asthma or airway hyperreactivity may include any of the following:
Environmental allergens (eg, house dust mites; animal allergens, especially cat and dog; cockroach allergens; and fungi);
Viral respiratory tract infections;
Chronic sinusitis or rhinitis;
Aspirin or nonsteroidal anti-inflammatory drug hypersensitivity, sulfite sensitivity;
Use of beta-adrenergic receptor blockers (including ophthalmic preparations);
Environmental pollutants, tobacco smoke;
Irritants (eg, household sprays, paint fumes);
Various high- and low-molecular-weight compounds (eg, insects, plants, latex, gums, diisocyanates, anhydrides, wood dust, and fluxes; associated with occupational asthma);
Emotional factors or stress; and
Perinatal factors (prematurity and increased maternal age; maternal smoking and prenatal exposure to tobacco smoke; breastfeeding has not been definitively shown to be protective).
For more on the etiology of asthma, read here.
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Cite this: Zab Mosenifar. Fast Five Quiz: How Much Do You Know About Asthma? - Medscape - Jun 04, 2019.