Multi-Specialty Recruitment Assessment (MSRA) 2025 Practice Test

The primary distinction between mesothelioma and asbestosis in terms of exposure is that mesothelioma typically arises from shorter, yet often intense, bouts of asbestos exposure, whereas asbestosis is a chronic condition resulting from long-term, continuous exposure to asbestos fibers.

Mesothelioma is a cancer that affects the lining of the lungs, abdomen, or heart and is closely associated with asbestos exposure, particularly among individuals who may have been exposed to high levels in a short time, such as construction workers or those who worked in shipyards. It can develop decades after exposure.

In contrast, asbestosis is a type of pneumoconiosis resulting from the inhalation of asbestos fibers over an extended period, which leads to lung scarring and respiratory problems. Typically, it requires prolonged and cumulative exposure to produce symptoms.

Thus, the accurate answer highlights that mesothelioma is more linked to short-term, intense exposure, while asbestosis is associated with long-term exposure, differentiating the nature and risk factors of these two asbestos-related diseases.