New York State Asbestos Investigator Practice Exam

What is a major long-term effect of asbestosis on lung function?

1. Increased lung capacity

2. Improved oxygen transfer

3. Restriction of oxygen transfer

4. Enhanced pulmonary function

The correct answer is: Restriction of oxygen transfer

Asbestosis is a chronic lung condition caused by long-term exposure to asbestos fibers, which can lead to significant scarring and damage in the lung tissue. One of the major long-term effects of asbestosis is the restriction of oxygen transfer. This occurs because the scarring of the lung tissue reduces its elasticity and the overall surface area available for gas exchange. Consequently, patients with asbestosis may experience difficulty in breathing and decreased lung function, resulting in inadequate oxygenation of the blood. The other options — increased lung capacity, improved oxygen transfer, and enhanced pulmonary function — do not accurately represent the physiological changes associated with asbestosis. Instead of improved lung function or capacity, individuals typically face a decline due to the progressive nature of the disease.