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

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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:

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submitted by momof21234(6)

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hte attinpe ash eosatssb chhwi is vsriticerte (celu swa elaurpl aCqls)p DueLO is reasededc ni oati-nhcirrcat nosctdiion ettlai(insitr nlug dz ct)e and naolmr no tehc-crxitarao ndiictsono mlusacu(r sis)esu

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usmlecharserssss hwo CFEV/F1V si loanmr i cnotna etg htta +4

sammyj98 I iktnh shit si arnsdtda for tvestierrci gnlu asiedse.s In iuoecbrsttv the rawyias cpoelsla idrnug tirnxaoiep os 'sti adhr to ,eperxi ubt 'retesh a gnol drwan tou den ot paitnroie as ielttl yb lltiet ti ,sseecap iledang to a seededrca ./1CVEVFF In ietticrsvre spt' sujt a'rten ealb to evmo nad axdenp ireht nslgu n,uhoge os hwne ythe rexpie i'st of a asmll mlue,vo tub erhte i'nst ayn eollcpas eoin.dlvv Is't ekil a oanlrm axrietionp tjus ithw a dsttrcieer muo,vel ginkam the /FVEFC1V nmra.ol +

spow leshsss@rracmessu nI itvetsrreic glun sesai,des het riota si heiret nlrmoa or s.rcadeeni +4

drzed And eth rasoen wyh VCFE/VF1 si teiehr mlonar ro desrnaeic in iiettvcrers nlgu eiadses si yver pe:siml teh 1VEF dan FCV othb esceerda ecauebs you rea grsnreciitt riwfo,al tbu het VFC wlli esceader OMER ntha eth 1FVE, and uths ubaseec hte dntemoaroin is ral,gre eht ifocnrta tehrei satys moa,nlr ro ceirsnsea ghitnsalyol Crtts thsi ot otvibtecurs gnul iadssee ewerh ouy hvea an oonctuitsbr to ria F,OLW g..e hte EV1F lliw eeseacdr reom than teh FC,V gaiedln ot a low torai by ntdfiieo +7

llamastep1 To dad to hwat dre@dz ida,s osiisfrb seausc ilaard ntoctari on hte wisayar frehorete acegirinns 1EC/FVV.F sThree a lwodrU q no it +1

ankigravity And stuj to add to tawh spelaa1mt@l disa, ardail trinocta si the eetvalir fcreo eteerdx on eth asairwy by teh ntalietitrsi etusiss. It is nrcaidsee in cfribito dcstoinnio ued ot tigensn of eht seutis and radseeced ni nsdtoocini atth sydorte or urdece thgtensr of tnsaliteitir .eutssi +

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)

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submitted by ∗imgdoc(183)

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30 yresa onscoctirutn ,rkerwo i,ouasntiln sdiipnb,lghiu pilumn?gb osesnistibAefs antiosyrrpi laesrcck = eetscvtriri ngul ibteasdreseaal li alpcarmynhe sciaipot,e ILURERCTA enrttpa = yanoruplm sorfbsii pnrteta on PARERLCLUX ULAQSEP = rCeyrh on op,t xtrea oi,fn .tsseisoAbs

All of this opntis ot a tvesirtrcie nlgu saedeis tiwh an IILRSENTTTAI retn.pta vneE if oyu ddn'ti etg ite,sssosba btu eoostrundd atth htis ahcgolopti rscospe si rreetcisvit ni atnrue, oyu cna teg het thirg tse of echasgn on PFT. Tihs si a lcpigtohao tinrlsieatit ei,sasde ont iahastmnye vrsiag or poo,li so OCLD liwl rscdeea.e IF ihst asw ythanmaesi r,igsav nad ti dseka ofr eht emsa set fo snfiindg oyru CDLO DLUOW EB RM,NLOA yuor lvreaoAl rlaaitre itdenrga dluow be !rlm!aon

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+0 upvote downvote
submitted by docred123(9)

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Aer all erittntrteiciav/eisstlri ngul adissese aiidtnicev fo a LOW LDO?C

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nlkrueger nyol fi 'its na ettilnsirati ungl dsiseae i elbeiev. keil piloo can ausec a r"sviietctre ugln sdaies"e btu tsi' ued to seuclm eoftrf dna louwd xptece to ees a eercdeas ni sduiffgin apactyic A(F 8201 gp 5672). +6

meningitis orniucotsCnt rrkwoe, fueDfis erraltciu ctipisoea emsedrca ecievstrrti nda wol DLCO rof .em nihygtnA htat iehret asdd sbisofri ot ia,lleov or neikchts the ertmieda twebene vlaelio adn erlavloa cslirplaaie lilw caesu wol DCLO. +10

305charlie94 cAlltayu lopoi is noe of hte ctsvirereit ugln eidassse htat aevh a mlorna nffsdiigu cpcyiata rof rcboan donimeox (AF 1902 p6.16) +1

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