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NBME 20 Answers

nbme20/Block 2/Question#38 (20.6 difficulty score)
A 50-year-old woman with a restrictive ...
Functional residual capacity: decreased; Residual volume: decreased; Vital capacity: decreased🔍

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 +6  upvote downvote
submitted by mbourne(61),

In restrictive lung disease, literally all lung values are DECREASED ("restricted") except for the FEV1/FVC ratio. FEV1/FVC ratio may be normal or increased (increased only if FEV1 decreases a bit less than the decrease in FVC, resulting in an increased ratio).

 -2  upvote downvote
submitted by strugglebus(154),
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,kO so oyu cna nseroa stih yb diwnarg uot EITR sor(yr I cnta' awrd it here). noAhyw, uyo nkow tis a sticerreivt sreoirdd and llwi eavh a rsdeeceda VR, os ytatolcaamliu yuo onkw that RV si a conomtenp of CFR F=(CR ER+RV.)V ,Thus RCF lhsoud aslo eb aeesderc.d uYo lsao konw tath eiscttvirer sseiseda rea hatazercirced by a aytsed racseeed in V/FFC1EV cseni hbto onmecotpsn era isTh esaevl uyo whit VC csgeedrnai enisc CFV= rcofde tvila icp.actya

champagnesupernova3  FEV1 and FVC both decrease but FEV1/FVC actually increases because FVC decreases more than FEV1 so the ratio increases +  
fluentinwhale  Excuse my stupidity but what is REIT? +1