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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Breath sounds are decreased in all the following except
assistant
The correct answer is  In pleural effusion, pneumothorax and in atelectasis the breath sounds become absent or reduced. While in lobar pneumonia breath sounds increases. Reference : Davidson, 23rd Edition, page no : 547.