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Retired NBME 23 Answers

nbme23/Block 4/Question#45 (reveal difficulty score)
A 32-year-old man has a diastolic blood ...
Precapillary resistance 🔍 / 📺 / 🌳 / 📖
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submitted by ferrero(48)
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A ervy sialmir insueoqt I evah seen ni knsaQb wlli sak yhw a enatpti hitw tgrhi htrae lfiauer esdo nto levpdeo medae adn teh nweras is rdsiecena tlhacimyp idn.rgaae I gto tihs eioutqsn worng iiylaglnro usaeebc I nraseewd ganol this inel fo osernigna ubt I ntkih ni shit saec it lla ahs to do whti WERHE het xetar suesrrpe is mogcin ormf. nI ihts isnouetq teh pt hsa iocsadlit sehynrpeitno os oyu nac kinht aubto hte rsespure sa ncmiog o"rd"fwar os tgrnostncici eprallarypic hpiescstrn nac reepnvt na creinsae ni rssrepeu in the cylaripla d.eb eoewvHr rof hrtgi raeht fruiale iths axter lfidu si ognicm fmro het SOOIEPPT nodetrici sacr(awbkd mrfo teh ihtrg at)rhe adn niscctgntiro rceprylailpa hpntessrci cna od htgnnoi n(o tspioepo sied fo illyarcpa )ebd - eth oynl wya ot tvnpere maeed si ot neecsira tcpmiylha ane.igadr

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seagull  eTh enqsouit yellrca eald us ot htikn abuto mtsoicO uesrerps yb klgnait aotub pneiort nda .uerni I eonrdw owh ynma opelep seud ahtt nile fo iserannog liek( feys?ml) +20
mousie  raeGt pinxoaaenlt, I osehc tmiyalchp drianeag fro the eams nsergnaoi ai(rlsim Q on ternfiedf nbka) +9
sympathetikey  My iesrngnao swa muhc reom scistilpim yba(em oto esil)mp tub ni ym min,d itcsysol PB si dednmeiret yb iCcarda tputuO adn iaodctlis PB is dedimtneer by tosiea.erlr ,reoreheTf hwat ocsem eoefbr het cllapairy dna easuegrtl ntseasierc? oseArl.riet Ttsa'h ywh I isda hatt ailrcyalpre-p saersi.ctne +41
cr  hte mnai ifrecefend eeenbtw teh 2 ecsas si atht ni tshi ecsa eht tipneta has hghi PB +1
link981  oS ni eienkrdarngt eglgnuaa eth eoiqtuns is ayelstinsle skagin who gihh usersrep in eht iaeratlr mssyte si NTO srattnmdeit to the uveson tsesym iwch(h si rwhee MAEDE eed).slvop tuB oyu konw ehyt hvea ot dda lal sthi onfi to try oecfsun a acsbi piicrelnp and eamk you osecnd ssueg sf.uoyrle tGo( it gorwn by het yw)a sucebea of waht e@frorer aids fo knQba siqont.esu +9
hello  ro@reref atwh are you agnilkt ?auotb lchpyiatm aigrdane is eth grwon s.wae.nr. +1
hello  ko erevn .dnim i otg t.i dhar to etndnadsur cb/ it swa a bgi cblok fo ettx. +2
asteroides  I inthk hety aym be tiklnga touba eht ngmoeyci parsecoontmy m:hisceman s5o4ste/bb.v?o.ipn4Bowf/wnhm/hnubk/gggrciot/o.l5e/./3rewtt=Nilpyjic1:on.fK4rIr aeecn"sd rtareial or vsnuoe sreuersp oasl iseducn eynoimgc iscnnrtocito of raslretioe nda eapricrplyla ierhs,tcsnp hwcih arssei tiaarrorel ersiseatnc ty(ehber giinmmiinz het ecarneis ni ypaclirla s)resurep and resceud the vclarasicromu sfruace area aaeablivl rfo lufid cxneh eFagor. eaeplm,x seeabcu aarluvsc ohtmos msleuc ni ratrelai and otlrieaarr sllwa cacntsotr nehw xspdoee to vdteeale ualnaicvrarts esp,errsus siht mnyceogi rnspoees scerasnie arealicppryl csiesnrtae nad setrpcto sllaariepic from a onccintotma ersi in rehit arcrasavtinul urs.eps"er +7
stsfyt  semak nses.e seeoimtsm we sue ()sdoonvltCCaaiiB + onelviitdano IEAC)( bcmoo to blcnaae the ussre,pre adn rtnepve laeekag dan da.eem +

I think they are referring to maintenance of GFR and blood pressure relationships. Ergo the mentioning of the renal function. The precapillary resistance is "glomerular" precapillary resistance, so if that increases then GFR remains the same => prevents leakage of proteins and albumin => less edema.

https://www.youtube.com/watch?v=IRZsniaCfVQ

+2/- peqmd(75)

this is the concept of blood flow autuoregulation at the tissue level in response to increasesd arterial pressure via arteiolar remodeling via smooth muscle hyperplasia ....

+/- msw(4)

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submitted by staph_aureusxx(9)
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aaeypllcprri cristenesa = snirgbidec eth et.eorrisal ehs' tgo nmiiaml tropeni ni teh enuri; adn on ul.ibman eht yke saw gypina otainttne to teh ldboo e.epsrsur erseuPrs is gadreuetl by hte etieansrcs slessev sa odrsab sclal ti hiwhc si the elierosrat kaa rypalcrlapie e.asitnsrec

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submitted by notadoctor(175)
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v'eI ebne nigcsaehr orf ym scrueo rof itsh utb antc' mese to difn t.i Hwveoer, hte yaw I tohhgtu autbo ti aws tath aeemd epahpns iva hte iscaellra.pi fI rhtee si irceenads esnaicrste vai teh aryerpapillc pesncrhsit as chmu bdool wun'dolt eb aleb to gte onti eth iiraepasllc. hTe lobdo oudwl ensatdi teg edtunsh iva osssonaemat ot hte v.sine iThs clerati mrfo yoposyc.hvmlcgoi nixslpae ti a tillte :tbeetr VC :ihsPygyolo uisesT Emdea adn aeeGrln Penilrspci fo irnllysarTapca dlFui acnhxgEe

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submitted by chagas14(1)
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ayMbe hte tnioqeus is ednialg wthi eht ccpnteo of imcnyoge ltrraaeori csovniarosotintc wichh is a rehnaot teadnmai-e enmism.ahc eTh rep pcilalray ipetnschr ortnactc ni ssenerop to a eiars in PB. I tog eht Q owngr baucese I dieckp yilamphct o.lwf Tyeh evlo ot og for the awt"h "else ementel of nya ipcot. I nnatoc fdni ayn rnoase wyh hte hatlcmyip ontpoi lucdo eb ognrw /:

ct/cB.whnrKvilebtwoli//4/bn=.o:5mc?.shogs5p/k4wipn.3srostNa hckeC the ieurgf .41 ehT gManir of tSfeya gtniAsa adEem tranmFooi – Eaedm ySfeta rotcsFa

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submitted by adong(144)
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nI ioantidd ot athw hsa ylerdaa eenb sdia I nihtk na tmapirnto oipnt ni the utseonqi asw ylragteruo nmjtetassdu whchi iosptn more dwotras rroialtare tureagloi.n

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submitted by usmleaspirant2020(9)
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e0dcn1:d702blb/oa92n7ide3y1ft5209rdf057..o2d/7feheu/d9tcou02t/0p0a6et3ccef6sde92

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submitted by ninja3232(11)
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nWhe" aaitrelr ruspseer lfla,s oieygmnc tone si dudrece in erilter,soa recaengsid etirh crastesnie to flow dna mingtaaniin aliyclapr urspeesr. eesTh tebsironovsa gsutesg tath lcypralai suserper amy be gautelerd ovre the sema aegnr fo rrupsees hnesagc orve wchih owfl is galoutrdeetau in a engvi rano.g deId,ne mfro eth in:r"eaotl

cmNh.g./54ns/5t/:bo./ti4n3bwpwowiklhBsK/o.nv

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submitted by hello(429)
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hwy is pamsal cctiono eprsrsue wngro?

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rainlad  I tihkn si't aucbsee we olduw eepcxt ot ese eosm mreo pmiilu/iurnitanoraeurba if hte ampals otnicco sereupsr dah reidnseac to etanmosepc +1


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submitted by ferrero(48)
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A evry rmasiil tnoqiseu I vhae sene in sQbank lwil kas yhw a tnpeait thiw rigth ahter euilfra osed tno lvpoede eedma adn eht snarwe si eiearncds cphitaylm randagei. I gto hits suintoqe ngorw iolirnlayg aebescu I snraweed angol siht line fo nsagieorn tbu I khtni in hist aesc ti all ahs ot od with WREHE het eaxrt spserure si nmiogc ofm.r In sith ueqnitso hte tp sha liatsciod nnyosierhtep os oyu acn hkint outba eht eupserrs sa minocg wo"rfard" so inictortgsnc eclplrapayri ispsterchn anc etevpnr an eairsecn in psseuerr in eth rilpyclaa .dbe wHoever ofr tigrh eatrh aurifle tshi exrat fludi is cinmgo omrf eth OPPIOTSE ioreicntd (wdkrbacsa rfmo hte ghtri rha)et dna rttcsiognicn ceayparrlilp phcsrsitne nca od gonnthi on( estpoiop isde of ailcyprla )deb - the nlyo awy to nepvrte dmeae is ot enseiarc acpilhmty .ragdniae

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submitted by usmleuser007(464)
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tcArio tacisioDl srrsPu ee

  • igHh TRP = ghhi DP
  • Hihg HR = hghi DP
  • ghiH VS = ihhg DP

roiAtc Syoicslt sPese urr

  • giHh arittyotlnCic = hhig SP
  • Hihg SV = hghi SP
  • owL caeCpmioln = ghih PS

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submitted by spow(50)
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I laos ikhtn htta hte ptnoi gneib eamd eehr si btoau naem taaeilrr ssrrepeu P(A,)M hwich is hwta uoryaugaltrtoe mssesyt culayatl hncega adseb .on sueecaB he ash irdeceans MPA d(ue to sacneired ,BDP) eht aieilrsclpa lliw cctiontsr to miinanta taontncs e/srflrpeswuo hgrtuho hte aypcarill db.e

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submitted by divya(75)
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i dnt'o hiktn you ened to tnhki lal htta m.hcu kolo at lal hte oinpots adn htink of hwat hapnspe newh hety cneaes.,irA B, ,C D and F lla acn eucas ttiaelstnrii eB.d euamt agnresinic crilelaprypa actnreises eftedniyil o.tdns'e

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drzed  edcaenrIs itpcaymlh ofwl odwlu nto eacus ienrtailsitt .madee +1
123ojm  tbu ti so'ednt asy rie"secan n"i, ti tjsu says ueay"ltgrro dsetntamsuj n"i. +1


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submitted by usmleuser007(464)
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.1 rticAo tiiloDsac ruesPesr 1. Hihg TRP = hihg D P 2. Hgih HR = hhig DP 3. Hhgi SV = hihg PD 2. iorctA ylSctios sPueresr .1 Hhig tnottcayCilir = ghih PS .2 higH SV = ighh S P 3. Low paoCmeincl = ghhi SP
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yex  liirpccM//r:Mtyihpy12cnmsaoots0og/o.ltiohcv/uc hTsi helps owhoes,m eht ftris aptr abuot ialaylrpc .prsrseue +
usmlelol  'thsta the exp atr:p: hTe eagarve irlplayca ycrtshdtaio rupesers si drimtnedee by tiralaer adn snuveo sreessurp P(A dna VP), adn yb eth ratoi of se-tar-oaoilptcyrlpp ecneastissr /.)R(VAR nA aenescir in erieht rilraate or nuvoes espuersr liwl enicaser lparyilca essurper; eev,horw a neivg enghca ni PA is loyn uatob -ntffieoh as eefetvifc in hngnaicg CP sa hte same eatoulbs chaeng in VP. useBeca vesuon ercanisste is tvaerieyll wo,l cnasghe ni PV rea iaedlyr iastednmrtt ckab ot het iacal,plry nda oy,nscrveel ubcseae riateral ectsrisean si vaytierlle hi,gh gcanseh in AP rae loproy rtsndtimtae aemwnrdsto ot het alyaril.pc +1


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