Asthma

Etiology

Precipitants

Environmental: house dust mites, cockroaches, cats, seasonal pollens, occupational exposure (occupational asthma), tobacco smoke, weather changes (especially cold air), air pollution
Exercise
URI
Rhinitis and postnasal drip
Sinusitis
Aspiration
GERD
Drugs: beta blockers, aspirin, NSAIDs, histamine, methacholine, acetylcysteine, aerosolized pentamidine, any nebulized medication
Catamenial asthma (menstrual)
Stress

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