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 itntepa has abstsseo iwhch is tiicrsrevte lcue( swa arlluep CspqOlaue)DL si asdeerced in -nracrticiaoht nndotsiico arits(ielntti ngul dz ect) adn rnoalm no crhoiactxrt-ea ndnsitoico rul(csamu ssues)i

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usmlecharserssss hwo FV/CEVF1 si amolnr i tanocn etg atth +4

sammyj98 I kihtn tish is srandadt rfo tiviretersc nglu see.sdias nI berscuiovtt hte iyarsaw soeacpll nirdgu ertioinaxp os sti' hard ot ir,pxee btu rst'ehe a nglo andrw out dne ot itrepnoai sa leltit yb tltile it pecs,sea egdinla to a aesercedd 1FVEC./FV nI teterivirsc 'tsp usjt tean'r leba ot oemv nda anpxde eirth lnsgu ,ohgnue os nhwe eyht rpeixe sit' fo a masll mvu,leo but htere 'nist yna saplelco .nvlevoid s'It kiel a lmaonr oiixnrepat tsuj whit a ecdetrtsri ovl,meu gikman the /FCEFVV1 .amrnol +

spow ssrusmsssclaree@h nI rercttvesii ugln sed,aseis hte iaotr is ithere nmlora ro snarede.ci +4

drzed dAn eht sarone ywh C1/FEVVF si ehiret lornma ro ndeirscea ni vciirserett lung ssadiee is vyer :iepslm het 1VEF adn FCV tobh dsraeece seueacb you are tgsrceitrni iwfa,orl tub hte FCV lwil crdseaee MORE nhta eht EFV,1 nad thus becuaes teh odnomreanti is rrlae,g het oiratfnc riehet aytss r,omnal ro reenaciss yClrtsglinsthtoa shit to rtibovustec ulgn sdaeesi eherw you avhe an trtcobsinou ot ira ,WLFO e..g het E1VF illw sercedae reom tahn het FV,C aenilgd ot a wlo toair yb notfiide +7

llamastep1 oT dad to ahtw @ddzer id,as sbrofiis cesaus dirlaa tcitrano on the siraway rthfeoere gciinenras 1F.EVV/FC sTerhe a wrlUod q on ti +1

ankigravity ndA tsuj to dda ot wtah ma@1lsptael isda, ailrda cnotrait si het ieaelvtr rfcoe txeeerd on het riwasya by teh atttsilinrei essus.ti It is carsendie ni boctiirf snctdioion eud to egntisn of the iesust adn esrddceae ni cdnoonitsi htta yotserd ro ueedcr sgettrhn fo ritinatsilet u.tiess +

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 easry istrcnunocot rwroe,k nsiut,laion lbsip,gnihuid ?mlbunipg sAtss nieebifso siirparytno esclarkc = rtcveiirtes ugnl atlrl aieeiessabd rcpanlhmeya tespci,aio LTIARRUEC tratpen = lmnoauypr ibrsfsio neaptrt on UECPARRLL X SPLUEAQ = heyrrC on ,otp aertx on,fi ssbeosi.sAt

lAl fo htsi niptos ot a risitceetvr lgun sdaeise hwit na NRELASTITITI tpna.ret vnEe if uyo dt'nid get s,esasbstio ubt norseutodd thta this poighatlco pcesros si ieirrsecvtt ni nrt,aue ouy can get hte rhtgi ets of gacehns on .TPF isTh is a aoopgthicl triatnietlsi adseise, nto ayihaetmsn isravg ro li,oop os CDLO ilwl ee.rseacd FI tihs asw hitnmayase vgi,sra nda it kasde ofr het same est fo dnfigsin oury LDCO DUWLO BE OLAN,MR ruyo aelvrAol rlaiatre diengtar dowlu be nrmo!!la

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+0 upvote downvote
submitted by docred123(9)

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Aer all isearstt/iiitvrtletrneic lgnu assdeeis dntcvaiiie of a LWO L?OCD

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nlkrueger ylon if ti's na ntielitasrti ungl esaesid i e.veibel ielk oipol anc ceaus a ertsc"itvier guln di"esaes tub 'tsi eud ot lmsceu frfeto and uwodl pcetxe to see a aesceder ni gnsfifuid pitycaac FA( 1028 pg .62)57 +6

meningitis ttrocConusin orkwer, isfufeD ucatilrre aistoeicp desmarce veirtceirst dan owl DCLO orf em. ghinyntA htta ieerth ddsa ofsiirbs to vealoli, ro kescinth the rimeetda tnewbee ivaleol and ollreava caisirpella ilwl ueacs wlo L.DOC +10

305charlie94 lyctluaA oopli is neo of het etsvirerict gnlu eisasesd htta eavh a aromln ifnsdgifu ticcpyaa fro rcbona onidemxo FA( 9021 1.p)66 +1

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