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NBME 15 Answers

nbme15/Block 2/Question#15 (reveal difficulty score)
A 64-year-old man comes to the physician ...
Increased fibrosis in the interstitium๐Ÿ”,๐Ÿ“บ
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 +3 
submitted by ergogenic22(350),
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LTC cedseeard essgstug vecristirte i.aedsse aceruiltR rttapne gsusstge mrlyaounp srsfibio

cheesetouch  fa2018 p657 +  
whk123  So after seeing clubbing of fingers we have two D/D's in our mind 1)Bronchiectasis (a type of COPD in which TLC increases your lungs expand due to obstruction air can't go out from lungs so air keeps on expanding lungs) 2)Idiopathic pulmonary fibrosis why IPF is a ans here because in q stem TLC is decreased and the coarse reticular pattern (honeycomb appearance) is also a giveaway. +  



 +0 
submitted by prostar(16),

Constriction of terminal bronchioles- asthma (Increase TLC)

Destruction of alveolar walls- Emphysema(Increase TLC)

Increase mucus secretion in bronchioles- chronic bronchitis(Increase TLC)

Loss of elastic support to the walls of bronchioles-COPD(increase TLC)