NBME 23 FEV1/FVC: normal;<br />FVC: decreased;<br />Diffusing capacity of the lung for carbon monoxide: decreased (NBME Answers)

Retired NBME 23 Answers

nbme23/Block 2/Question#21 (reveal difficulty score)
A 55-year-old man comes to the physician ...
FEV1/FVC: normal;
FVC: decreased;
Diffusing capacity of the lung for carbon monoxide: decreased 🔍 / 📺 / 🌳 / 📖
tags:

+6 upvote downvote
submitted by momof21234(6)

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teh intteap ahs osestbsa ihwch is stictrireve (eclu saw lprauel DCL es)paOluq is dsaeeecrd ni onactcrhrit-ai osicntiond (lnarteitsiit ugln dz c)et nad laronm no aoaexc-tirrhct insdtoocni usulrmac( u)ssesi

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usmlecharserssss hwo F/FEV1CV is aolmrn i nnoact etg hatt +4

sammyj98 I hknti isht is rtaaddsn rof teiicstrver nugl essea.sdi In vbestcrtuoi eth rwysiaa laseolcp ginrdu oitpnrxaei so s'it hrad ot ixerep, utb 'esrhet a ngol wadnr otu dne ot rpatoinei sa iettll yb tleitl it p,eassce gdlinae ot a ddacreese /VV.1FCFE nI iicsertrvet tsp' sjut aet'nr albe to ovme and nepdax eithr gunls hungo,e os nwhe hyte perxei t'si fo a lamls el,omvu ubt trhee nt'si yna ealocpls voivnl.ed Its' elki a olamrn nipxteorai stuj whit a risrcedett euvol,m ankmig the 1F/FVCVE .rnlaom +

spow lrssrmssscu@eseha nI riitsceetrv nulg aisse,sed eth raito is eihert romlan ro aesicrnde. +4

drzed dAn het oernsa hwy 1FE/VFVC si teirhe manorl or saiendcre ni istecerrivt lgun easiesd is evyr mlp:esi teh 1VEF and VFC hbto ecdrseea scaubee yuo aer niciegsttrr i,farowl ubt the VCF lwil esrcedae OERM than teh 1V,FE nda uhts eeuscba eht mrnoiedoant is glre,ra hte inctoafr etehri ysats m,nlaor or ecrsnaeis olsaiyhl trtnCtsg shit ot rciutestvbo ungl esidase werhe oyu haev na oionbtucrst ot rai L,OFW ..eg the VF1E ilwl aesredce eorm hnta het ,FVC adeling ot a low irato yb fitneodi +7

llamastep1 To dad ot tahw d@rzed adi,s sorsfbii cssaeu aildra ntrictoa on teh rwysaai hoeretref rcningsiea /FFVE1.VC hsreeT a oUlwrd q no ti +1

ankigravity dAn tjus ot dda ot thwa salt1lep@ma ad,si aialrd caotrtin si teh vltrieea froec reeextd on teh wriyasa by teh leittnriiast sts.uise It si aicnerdse ni toicbirf oinoicsntd edu ot isentng fo eth stusie dna adcesreed ni toosdininc that ertsoyd or ecuedr rtsnghte fo taietisrltin .ssutei +

FEV1/FVC is normal because even though FVC decreases, FEV1 also decreases proportionately. There for the FEV1/FVC would be normal if both values decrease.

+2/- mdmikek89(6)

+1 upvote downvote
submitted by ∗imgdoc(183)

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30 areys cttrnuosicno w,rreko tlsniiunao, ihbsln,uidipg gubnimlp? sessiobtfisnAe pntyaorsiir elacscrk = ecrrtitvesi lgnu e alarlaibetisesd laaprmynhec coiasit,pe LIEURRCTA tenptra = rmnayluop sborisfi pttraen no ELUARPXRLC UPSQLAE = rryeCh on to,p retxa nf,io .ibsssoeAst

llA fo shit snpiot ot a srtivrtecei gnul aiseesd whit an NISITRIATLTE ntp.tera eEnv if uyo n'dtid teg bsossetia,s but rdeudotson ahtt hsti atghopclio ocsrpes is teritrcsvie ni are,nut ouy nac gte het hgirt set of caeshng on .FTP shTi is a tpcioahgol tteiaslritin dees,ias ont tihseymnaa savrgi or ioolp, os ODCL lwli reaeced.s FI hist was eytamnshia sai,rvg dan ti dekas ofr the aesm tes fo idgisnfn oryu ODLC LDUOW EB RAML,NO oyru voreAlal iataelrr dertnagi ulwdo eb lamn!!ro

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+0 upvote downvote
submitted by docred123(9)

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Are all eeirict/sitrveiiasrttlnt nlug eisassed aiivcdtine of a OLW ?DOCL

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nlkrueger yonl if 'sit an nitiattilres ungl desisae i l.beieev elik lpoio can sceua a ritv"iescetr nlgu eiad"ess utb 'tis due ot smcuel tferfo adn uodlw cxeetp to see a sdaereec ni uifindsfg paaticyc A(F 0281 pg )65.72 +6

meningitis roncoCtntsiu ,eowkrr ufDifse ieaulcrtr eaiicptso crsmeead viitrscerte dan lwo ODLC fro e.m Agtnhniy taht heetir dads orsfbisi to ,lvoliea ro cnsitkhe hte meedrait bneeewt iovllea dan elvraloa islalceprai wlil usaec low DCLO. +10

305charlie94 tAcualyl lpoio si neo of het irectsvietr lgun sesadies ttha ehav a amolnr ififngdsu caytcpai orf arconb ondmoxei (AF 0921 66p1). +1

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