College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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What is the primary cause of pneumoconiosis?

Inhaling particles
Bacteria
Viral infection
Mold

The correct answer is: Inhaling particles

Pneumoconiosis is primarily caused by inhaling inorganic dust and particulate matter, which can result from various occupational exposures. This condition is characterized by lung inflammation and scarring due to the accumulation of these particles in the lungs over time. Common examples of the types of particles that can lead to pneumoconiosis include those from coal dust, silica, asbestos, and other mineral dusts. The other options listed involve biological agents or exposures that do not lead to pneumoconiosis. Bacteria, for instance, can cause infectious lung diseases such as pneumonia, while viral infections can lead to illnesses like influenza or COVID-19. Mold relates to fungal infections, which can also affect the lungs but not in the same manner as pneumoconiosis. Thus, inhaling particles is the clear, defining factor in the development of pneumoconiosis.