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The nurse is providing discharge instructions to a patient recently diagnosed with sarcoidosis. The nurse explains that the cause of sarcoidosis is:

Explanation

•The cause of sarcoidosis remains unknown. It is believed that genetically susceptible people have an alteration to the immune response after exposure to infectious, occupational, or environmental agents. Sarcoidosis is characterized by abnormal collections of chronic inflammatory cells that form nodules in multiple organs, including the lungs.

•Silica dust causes silicosis.

•Asbestos causes mesothelioma.

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