Table 37.1Contributing or Precipitating Factors in Asthma

Respiratory infections
Changes in humidity or temperature
Exercise
Noxious fumes or odors
Air pollution (e.g., ozone, sulfur dioxide)
Allergens (e.g., pollen, animals, foods)
Drugs
Occupational agents (e.g., cotton dust, isocyanates, acids, enzymes)
Gastroesophageal reflux
Sinusitis
Psychological factors
Noncompliance with prescribed therapy or lack of education regarding asthma and its therapy
Idiopathic

From: Chapter 37, Wheezing and Asthma

Cover of Clinical Methods
Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd edition.
Walker HK, Hall WD, Hurst JW, editors.
Boston: Butterworths; 1990.
Copyright © 1990, Butterworth Publishers, a division of Reed Publishing.

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