OHST Practice Exam

Silicosis is a type of pneumoconiosis specifically caused by the inhalation of fine silica dust, which is commonly found in industries such as mining, construction, and sandblasting. The inhalation of this dust leads to an inflammatory response in the lungs, resulting in the formation of nodules and progressive lung damage over time. This condition is characterized by symptoms that may include chronic cough and shortness of breath, and it can increase susceptibility to other respiratory diseases, including tuberculosis.

Understanding the impact of silica dust exposure is crucial, especially in occupational health settings, as it represents a significant risk to workers in specific industries. The other listed conditions are associated with different types of dust: anthracosis is related to coal dust, siderosis pertains to iron dust, and coal worker's pneumoconiosis is another term for the lung disease associated with coal dust exposure. Each of these diseases arises from specific environmental and occupational exposures, underscoring the importance of identifying and mitigating risks in the workplace.