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NBME 21 Answers

nbme21/Block 2/Question#5 (reveal difficulty score)
A 2-week-old male newborn has a patent ductus ...
Higher than normal left ventricular cardiac output ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +9  upvote downvote
submitted by โˆ—d_holles(218)
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esHre' an ctlenexle iemga form SAOSBM fi olpeep rea iagnvh ilyciuftfd iliuanizgvs :hsti c:otRmui/s/thVrh/pam.QgWmm/

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lovebug  yevr ullf!ehp ksh!tna +



 +6  upvote downvote
submitted by jotajota94(14)
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PAD sowlf rofm roata ot pmylonura teryar neidearcgs trfheaoreeafle.To rd icarcad ouuttp aiseesrnc

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seagull  ondest oap-rdel olas edsaerec hwcih udowl opdr eht .O.?C +
hungrybox  gsluel@a I thnik it luwod aeencisr epodlar /cb erom blood si iggno toin eht rpaynuolm retaeirs -> ungsl -> oaumrpynl vsien >- nluavtleye rome odbol in eftl /ecrvinttliuamre -> nic doarlep +63



 +6  upvote downvote
submitted by heavy_neighborhood(6)
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PAD olwsf ormf hte Aotar g&=t;= nuyaPolmr eirrs,aet yb apgsisn the VR os ehtre si on cnghae ni 2O ni eht .RV

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felxordigitorum  ehT "tlsea" morf the ataro nuirgd eltaisdo ieusrreq nrcaeedis ccidaar tuputo ot csmnoat.eep yxeeltrEm mtpuarere nfnsait haev ldtmeii tabiyil ot nceaesir etkors muleov nad tshu seu icdensrae htrae reta ot rsiecean idarcca .potuut No/ohvoshitnpkwi08m3/t5/:/Kgclw/4Bbnb.7..w.ns +2



 +2  upvote downvote
submitted by โˆ—didelphus(70)
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A DPA ietlelsansy eaetsrc a flh-hgwoi hetar ruleiaf titnasuoi in teh .bbay cineS a ncofaitr of eht VL uptuot si eurrdent owitthu enhacrig the ,byod in erdor to tnmiaina a arlnmo CO to eth doby the tefl lrecnitve stum pmpu a ehghir lvoume. shiT wdlou oasl asceu gheirh thna loranm ormnlayup prlicyala .owlf

I ntihk semo of eht threo oustnqie ear ttggine ta eth iead tath ew odn't know teh eoincidtr of lwfo rfo .rseu If hte wflo wsa ro;ua&tta-l-n,gsg the cmsiesty 2PO dluwo eb maronl dan RV O2P i.hgh tBu if 'its ,steoopip hte tooeipps ulwod be .uetr

encSi DPsA are ndtinaiaem yb GEP,2 ttah ludow iotnrutceb to a lwo ailehperrp valcasur ecasrei.tsn

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didelphus  *artheno sure ondte atht iths dwlunt'o cmapti VR nxogey cabseue hte olbdo si deadd to het upnmoyarl y,eartr hhwic ash iexted het VR. +3



 +0  upvote downvote
submitted by moneysacs(3)
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Wyh is dose a DPA tfrae rhtbi tslreu in h"rghei hnta lnomar lfte evuarcrntil irdcaac "ttoupu voer airsendce "ihrgt earcutrvnil 2"?OP Dsoe teh plmu yrrtea -;gt&- oarat utsnh mobece reedrsev fetar ,itbhr os irhegh yxonge aator odbol udwlo lowf bcak toni eht irtgh tenirle?vc I tge ttah meor dlobo wolud be ppmdeu to eht lfet enli,verct ursitegnl ni HV/HRV,L but don't enaudnsdtr the O2 tbi.

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usmleuser007  1) heirhg tanh nlroam OC c/b boldo si etshnud from oraat ot poualynrm ertsiea.r Tish ldobo si addde to het evumol that aws dpupme toni hte promalyun tesrirae by the R.V Now newh eth ygtxdoeean lodbo setrrnu ot the LA & L,V hte 2O nnotetc dulow be etrrage dt/ rhhgei lobod uo.evml olAs orf atth mesa aenors remo boold si nrrneugit to hte LV td/( VL leomuv uslp tacroifn of RV uvoem)l. siTh seendirca eht i.Ct- - g> ORh efLt suhsnt haev laet noysicsa /cb eth VR is hpgiusn agnitas eht cessex srerupes aernedegt by eth .VL hTsi dslae to ennEgieemrs roSyemdn as RV aersleng nda shuspe insaatg the rsrepseu form eht VL in eht PAD. huTs nifshtig ftLe ot htirg ot tgirh to feLt dan thsu eth teal issnycoa +2
temmy  Teh omytana is namaoarltrp-oyu nrylemptaro-ayur ts-eevifnl t-tilfuraem te rnciNieoelcvt hatt teh dloob idd ont meoc rsasoc eht ghitr rhtea ta all nad bseeuac fo teh LTEF TO IRHTG utnhs of the DP,A we add moer louemv ot teh FTEL dies. nHeec teh icdneears fetl vulrrteinac uupott +2



 +0  upvote downvote
submitted by โˆ—masonkingcobra(408)
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nkLi

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necrotizingfasciitis  niogG off fo teh etoscnmm ppeoel vhea osptde obeva & kanid nrginibg tsighn ePrtg:A Dht e o lfsow fmor raaot ot pmlnauory ea,rtesri hiwch vseesrre rtaef bh.tri ihTs snaem xadteg-eondey oodlb owlf from eht oylrunpam iraserte to eth aarot & lsse oelumv egibn sten ot het FL deis fo teh at.hre hT is selrtus in a rddecesae alrotdaef eeusacb rhtee si ssel lobdo gilnowf rmfo het gnlus ot ll-reif the FL vr,ieceltn & hte atrhe is llist piumpgn hitw eht msae rcefo as beor,ef so hte esam omleuv fo doolb is gil,aenv ubt less ni intrngee eht FL dsei fo het .Frerao mth eh,er ouy esu OC = SV x R SVH = adlpero - dtlaofaer wch(hi si rceaseedd due to hte s hD AT )iP ltsures ni SV gbein relrga tanh rn,laom so ewhn uyo pgul ahtt iont OC = SV x RH yuo get a erghhi brmneu orf icrdaca out.utp +
didelphus  heT ucsudt roarsituse oflsw rmof PA ->- atora ni etoru to bspays het nlusg, ciwhh haev xyemltree ihgh scietsenar ot .wlfo hsTi sseerrve aetrf thrib edu to a pord ni E2GP wh(cih wsa pdulepis yb eth naet)pcal and rasiecen ni sfe-dtedli cmsesyti .erainetssc oS a PDA apyltilcy oswfl aarot >-- PA s(igsanmu treeh era no toher fe).ctsde +



 +0  upvote downvote
submitted by jandj19(0)
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Tihs si a yvre lcoo ncpeotc elinxpeda ni eth daRip iveweR lyothoagp o,kob page 7.25

sfedLedti- to tdhgre-sdii aehtr unshts tlussre in luvome evaroodl in eht rgith ides fo het ,rhate hhwic sseiaencr VL mluove rlop(dae) edu to mroe obdlo rgirtnenu mfro eth ritgh rahet to teh etlf aht.re nA aescenri in LV aerlodp is qaule mero rcdaaci tpotuu nad mero wokr orf eth h.tear traLe in file hatt lwli dlae to an ctececirn pyte of VLH hiwt ecersead carcdia ,ttoupu orlunpmay eensyponihrt adn a tcncenrcoi HRV ude to high refoadtal ahtt the tgrhi taher sah ot pupm nt.agias

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 -1  upvote downvote
submitted by djinn(6)
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woL rldtafeao g&;t ighh OC

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 -2  upvote downvote
submitted by โˆ—hello(429)
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iThs is hte ulcata tcerroc tnoa:panexli

ADP uceass odobl ot lfwo mrfo egenncsdid taoar to etptan cusutd aisurtorse onti lymaopnru cnroitaulic r-"tf(goh"elt)-ti

ehT setl"a" mofr hte ratao udignr lsdaoeit eqrsrieu caredsnei aaiccrd uouptt ot enmaspotec to lvedeir edeaaqut ntaoum of odblo to rets fo obyd

:Soeruc 8.K/mi./h..0wnkt4onBc/3sNl7vwbh5o:ont/w/psbig

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fkstpashls  'stI L ot R +2



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