It is a common pattern that leads to the erroneous conclusion that the asthma may not be occupational after all. Since both immunological and non-immunological mechanisms are postulated for asthma, OA patients may be confused by a sudden sensitivity to other agents such as freshly cut grass, ragweed, and dust. These agents may become causes for exacerbations only after increased airway reactivity has been established by the occupational exposure. Prevention Physicians, plant engineers, managers, and workers, all need to become familiar with known sensitizers. Pre-screening of workers is not accurate enough to determine who will develop OA particularly in industries handling synthetic agents.
Periodic monitoring is also important.
The Future Considerable research is needed to clarify the pathologic mechanisms of OA, predisposing factors, and more effective workplace controls. Only through a concerted effort will this problem be brought under control. Additional information came from the March 1996 issue of Occupational Airways. Both suspected and confirmed cases of work-related asthma are reportable. By January 31st, report all occupational lung disease cases seen for the first time during October through December 1997.