Respiratory hazards vary by workplace
Dusts, fumes, gases and other airborne contaminants can affect respiratory health. The relevant approach depends on the agent, exposure level, work process and worker history.
Spirometry can provide useful information
NIOSH describes spirometry as a central tool in occupational respiratory disease surveillance. It can be used to establish baseline lung function, follow function over time and evaluate workers with relevant respiratory symptoms.
Quality matters
Poor-quality spirometry can be misleading. NIOSH emphasizes technically acceptable, repeatable testing and appropriate interpretation and follow-up.
A number is not a diagnosis
Spirometry should be interpreted in context. Occupational history, smoking history where relevant, symptoms, test quality, previous results and workplace exposure all contribute to clinical meaning.
References
These references support the occupational medicine principles discussed above. Individual assessment and legal requirements may vary by job, exposure and jurisdiction.