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What is Atelectasis? Collapse of part or all of one lung, preventing normal oxygen absorption. Frequent signs and symptoms. Sudden, major collapse: Chest pain. Shortness of breath; rapid breathing. Shock (severe weakness, paleness of skin, rapid heartbeat). Dizziness. Gradual collapse: Cough. Fever. Shortness of breath. No other symptoms. Causes
Usually no treatment: Treatment depends on cause and severity. Minor linear atelectasis typically requires no treatment. It may resolve on its own. More severe atelectasis may be from respiratory infection, chronic lung diseases, obstruction from inhaled foreign objects, lung tumors, fluid in the lung, severe asthma and chest injuries.