A STUDY OF PULMONARY FUNCTION TESTS IN WORKERS OF DIFFERENT DUST INDUSTRIES

Sangeeta Vyas
2012 International Journal of Basic and Applied Medical Sciences   unpublished
The study was conducted to determine status of pulmonary function tests in sculptors, stone cutters, and cotton dust workers and flour mill workers. The study included 120 subjects in age group of 20-40 years from similar socioeconomic group. Eighty subjects were from different dust industries and 40 were taken as normal healthy controls. The pulmonary function tests viz forced vital capacity(FVC), forced expiratory volume in 1 st second(FEV 1), forced expiratory flowbetween25-75%(FEF 25-75),
more » ... 5-75%(FEF 25-75), peak expiratory flow rate (PEFR),maximum voluntary ventilation(MVV) were determined using Medspiror, a dry type of spirometer. The results showed a significant to highly significant variation in pulmonary function tests in workers of different dust industries. The decrease in FVC and MVV indicates a restrictive impairement whereas decrease in (FEV1), (FEF 25-75), (PEFR) indicates an obstructive impairment. The observed changes in pulmonary function tests could be due to mechanical irritation caused by dust and allergy reactions due to allergen present indust itself and individual's susceptibility to dust depending on duration of exposure.
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