nbme q - somatomedin

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A 49 year old man has a 1 week history of SOB without fever, chills or cough.Breath sounds are decreased in the left lower lobe , and there is decreased TVF and dullness to percussion in this area. the most likely diagnosis

1. bronchiectasis
2. brochospasm
3. emphysema

4.interstitial infiltrate
5. lobar consolidation
6.pleural effusion
7.pnemothorax