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Retired 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 🔍 / 📺 / 🌳 / 📖
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 +9  upvote downvote
submitted by d_holles(218)
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'Heers an clneeextl imeag frmo OBSSAM fi eeoplp aer hvgian fidilcutyf nzisuiailgv tsi:h /Vto/mgauh.:W/mrsQpR/mitcmh

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lovebug  ryve !llphfeu hankts! +



 +6  upvote downvote
submitted by jotajota94(14)
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PAD swfol form oatra ot puormyaln yreatr recndgisea rTeo e.ertfdhofarlae caiardc output assirence

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seagull  osdten eralod-p sola reedscae hwcih oudlw odpr teh ?.C.O +
hungrybox  g@uaslle I kihtn ti odulw irscenea adepolr /bc rmoe oobld is ogngi iont eht moryulnpa iretarse -> sunlg >- pyormnula neivs >- atelnyuevl rome odolb ni etfl nrteic/ilrtamuve >- inc arlpode +63



 +6  upvote downvote
submitted by heavy_neighborhood(6)
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APD solwf ofmr the Aotar ;=&=tg Plmaryoun ,reisrate by angpssi the VR os rehte is on hnagce in O2 in teh VR.

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felxordigitorum  heT lse"t"a rmfo hte oaart ndriug edilosta reiruqes enircsaed dacrcai uttpou ot .caoesntepm yEmexrlet etmeuaprr siantfn heva ltieimd aitiybl to rceaneis oktres lvmoeu nda uhts use iecsedanr treha etra ot ceisenra acridac ptuto.u Bpbo./74nmtk38wt/5lnvg0niob/wsh.h.:cs/N/oiw.K +2



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submitted by didelphus(70)
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A DAP aeislsnltye traesce a lfohiwgh- atrhe luearif suinitato in hte aby.b ceiSn a tocarifn fo eth LV toputu is redrtenu otuhtiw gaicenhr eth bo,dy in rerdo ot ninaatmi a ronlam CO to eht odyb eth etfl ercnlietv tmus mppu a rhgehi mvl.uoe hsTi owdul lsoa aesuc gherih tnah loanmr lmorpuyan lyailcrap olwf.

I itnhk esmo fo hte othre etqusoin era titgegn at het diea ttah we ntd'o nwok hte creidnoti of fwlo rof s.rue If eth fwlo asw ugtrslg;ao&a,--tn teh itmssecy PO2 owudl be oalrmn nda VR PO2 h.hig tuB if s'it iopste,op het otiseopp lduow be reu.t

iScen PDAs ear ateamdiinn by 2PEG, ahtt lwdou iotntebcru ot a olw rarpelpehi vslrauca tea.issencr

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didelphus  hr*otnea rsue tdeon taht this utnwdol' ctpima RV goxeny euscaeb eht oldob is daedd ot teh uranmloyp raert,y cwhih sah edtexi teh VR. +3



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submitted by moneysacs(3)
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yhW is oesd a PAD tefra thrbi elrtsu ni girhh"e ntah omarnl telf vleitrnuacr rcacida ttouu"p eorv indeecsra "right rceruatlniv ?"OP2 seDo eth mulp arryte ;tg--& otaar tushn eocmeb eeservrd faetr ,irhbt os ihrhge ygenox aoatr blodo dluwo olwf bcak ntoi the igthr ctnr?iveel I teg atht rmoe boodl udowl be dpmpue ot the letf rneie,tclv trlenigus ni VR,LVHH/ ubt 'ndot sndntuaedr het 2O .bit

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usmleuser007  )1 ghheir hatn rlnoma OC c/b obdol is dhsnetu rfmo toara to apnrmlyuo arieestr. hiTs olobd is dddea to teh ulmoev htat aws mppdeu noti hte uylpmanro etrerias yb het RV. Now hnwe eht neytgxdoae odobl trsruen ot eth LA & LV, eth 2O ttoecnn dlwou be trreeag /td rhiheg obdol omulve. Aols rfo htat esam earons roem odbol si unrtneirg to teh LV d(/t LV voelmu slup ntorfcai fo RV ue)lo.vm shiT scnrdeeia hte - ROgh> tiC.- fLte thussn vhae elat sconyasi b/c hte VR si nighpsu gisaatn eth ecxsse reuressp gaendtere by het .VL This asedl to neseeEringm Sdyoenrm as RV aerngesl nad sehsup natigas hte rpusrsee rfmo hte LV in het D.PA ushT igihftsn feLt ot grith to irgth to Letf and huts eth ltea sosiynac +2
temmy  heT otanmay si n-maaaupyrorlto aerayulrprtonm-y nvfete-sli ltmraief-ut Nrivloteec eictn atht eht boodl ddi nto emoc ssoarc het rgith threa ta lla dna eecabsu fo eht LTFE OT GRHIT hunst fo the P,AD we dad erom voeulm ot the ETLF i.esd necHe hte enirsadce tfle ntrrelicauv uouptt +2



 +0  upvote downvote
submitted by masonkingcobra(408)
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Likn

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necrotizingfasciitis  Gogni off of het esocmnmt leopep vaeh tdpseo obave & nkida rnggbnii nshitg e t hDog :tPrAe lsfwo morf artao to oalnurpmy rre,aiset chhwi evesserr ertfa h.rbti Thsi esnma aengye-oddxet obodl lfwo fmro the ynpoularm rteireas to eth raato & lsse lvouem ginbe etsn to the LF edsi of eht ath.er T i h s lrseust ni a ceeesrdda alefdotar ecbsaeu rehet is slse dbolo igfnwlo rfmo eth slung ot lfrlei- teh LF cteev,nlir & eht rateh is slitl ngpmuip htwi het meas rcoef as ,eberfo os eht ames eomulv fo dolbo si gali,evn ubt esls ni inegnret hte LF ieds fo the r.F earm hot e,reh ouy sue OC = VS x SH VR = ldpreoa - toalarfed (wihhc si reedcsead ude ot eht TD )Ps ihA selrtus ni SV ngbei lrrgea tnah lmn,roa os nehw you uglp atht iton OC = VS x HR uoy tge a hrgeih benrum orf acadcir ottu.pu +
didelphus  ehT suutdc eiastosrru foslw mrfo AP >-- oatra in roeut ot syapsb eth lnsug, hihwc hvea eltxemrye hhgi rteecnasis ot lo.fw sThi ererssev refta irbht deu ot a ropd ni EP2G hwcih( wsa spuidpel by teh l)cpteana dan enrcasei ni esletd-fid mysiecst aecretns.is oS a ADP icyalltpy wsfol rotaa --> PA iss(uangm ereth ear no htore dfeect)s. +



 +0  upvote downvote
submitted by jandj19(0)
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sihT is a ervy olco tpenocc epnlxdiea ni het iapRd weivRe yolathgop bko,o paeg .752

Le-sedidtf ot ieid-rhsgtd rhtae tnsshu esrsult in lvoeum oredoavl ni eth gtirh seid of eth aetrh, wchih isaseernc LV emlovu pa)or(led ude ot ermo oldob irgetnrnu orfm hte gtrih ehart to the telf arhe.t nA caerensi in VL lodprea si eulaq rmeo racadic pttuou adn omre rokw ofr the teah.r Lreat in ielf taht wlli ldae ot na cecirncet ytep of LVH hiwt eceesrda idcacar put,tuo pmyauroln nhnsteeypori nda a ciccrtneon VRH eud to hghi dlroaftae atth eth trigh rahte has to mppu t.ainsag

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 -1  upvote downvote
submitted by djinn(6)
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woL ardlafteo ;&tg gihh CO

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 -2  upvote downvote
submitted by hello(429)
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isTh is het acutla rrtcceo ontlaiexn:pa

PDA ausecs bolod to wlof mrfo inndscgdee raato to natpte tucusd oteursisar otin nmlaoruyp tluacoinrci )(elfg"o-httr"-it

ehT ts"a"el frmo eth oaatr uinrdg iodsaelt rqerisue dniecrsea rccaaid tuptou to secemnpota to drvleie taqedaeu unomat fo oobld to rste of yodb

:uoecSr Bcm05owknoglbh/nobp:K.i/.vtswwt.74.8i//N/3shn

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fkstpashls  sIt' L to R +2



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