What is the initial purpose of conducting a chest X-ray during medical surveillance for asbestos workers?

The initial purpose of conducting a chest X-ray during medical surveillance for asbestos workers is to set an initial baseline for lung health. This baseline is crucial as it provides a point of reference to track any changes in lung condition over time. Asbestos exposure can lead to serious respiratory conditions such as asbestosis, lung cancer, and mesothelioma, so establishing a baseline allows for the early detection of any potential health issues that may arise due to asbestos exposure.

By having a clear initial assessment of lung health, healthcare professionals can more accurately monitor any subsequent changes that may occur as a result of ongoing exposure. This proactive approach is essential in managing the health of asbestos workers and implementing necessary interventions to safeguard their well-being.

The other options do not accurately reflect the primary intent of the chest X-ray in this context. While monitoring blood flow or heart performance might be important in other medical assessments, they do not specifically relate to the occupational hazards associated with asbestos exposure. Additionally, determining levels of exposure to asbestos is usually achieved through different methods, not through chest X-rays.