Asthma work-aggravated

B. Irritant-induced asthma, work-aggravated asthma, and chronic bronchitis... 

Test Occupational asthma or work-aggravated asthma Hypersensitivity pneumonitis Emphysema Constrictive BO... 

In work-aggravated asthma, a worker with preexisting asthma has worsening of asthma symptoms due to exposures in the workplace. These exposures may be irritant chemicals, cold air, or allergens to which the worker was sensitized prior to hire. The diagnosis is made if the asthma was not active within 2 years before the hire date and there is (1) worsening of asthma symptoms on workdays and (2) serial spirometry tests and /or repeat PEER measurements suggesting a work-related pattern. 

Campbell, C. P., Jackson, A. S., Johnson, A. R., Thomas, P. S., and Yates, D. H. (2007). Occupational sensitization to lupin in the workplace Occupational asthma, rhinitis, and work-aggravated asthma. Allergy Clin. Immunol. 119,1133-1139. 

At noon Friday, the superintendant of the zinc works made a regular check of the dispersion of smoke from its stack and saw no reason to bank the plant s ovens. At lunch, though, one of the plant s managers was reminded of what had happened in the Meuse valley of Belgium in December 1930. Five days of smoky fog in an industrial valley had killed more than 60 people and made hundreds gravely ill. The comparison was well chosen. In the Meuse, as in Donora, illness struck mostly the elderly, with asthma-like symptoms aggravated by cardiovascular difficulties. And in both instances, the population laid immediate blame on the zinc factories.4... 

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