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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 vrye amlsiir osetquin I vahe enes in ansQkb illw kas wyh a tpnatie ithw htirg heart iefluar seod not edvlope edame nda eth nerwas is sncideare ymclaitph .ragadien I ogt ihst ntqousie wgnro ilolingrya cebasue I dawsnere lonag isth ienl of nngiareso tbu I inhkt in iths aesc ti lla hsa to od thiw HERWE het rteax psrruees si oicmng romf. nI hsit ontiqeus eht pt has sdaotilci oennreyshtpi so uyo acn ihnkt ubato the reresups as oncmgi f"rar"dow os tgnitrcoiscn apyrllceaipr sirnesthcp acn rvtneep an aicenrse in rperessu ni the yplrlaaic .dbe eewoHvr ofr tgirh rehta rfileau shit xtera dliuf si cnmigo mrfo het SOOPIPTE ntdioirce rdw(sbacka mrfo het ighrt etarh) nad sniicrntogct rllpapryiace nchietprss anc od ithonng o(n ospteiop ised fo pcailarly deb) - eht ylno ywa ot pvenret edema is to esacinre iyplahctm .raaidgen

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seagull  ehT eqnsuiot clyelar dlea us to hinkt oaubt csOmoti peerruss yb itknlag autbo poinrte adn niru.e I wrnoed woh nmya plopee usde atth inle of rsngieoan le(ik ml?f)sye +20
mousie  etGra xienaotlnpa, I hseco yatmhipcl rgadaeni orf the saem osgnenair m(isiarl Q no fefrdeitn )nakb +9
sympathetikey  yM aogneinrs wsa ucmh oemr lsipicmist mbaey( oto mpsle)i but ni ym indm, iolsytcs BP is mienteeddr yb cCdiaar tOputu nda idosltaic PB is rddeniteme yb ltsriroe.ae fTer,reohe wtha cmsoe broeef eht ylaalripc dan reglseatu r?asncsteei .eirseolArt asTht' why I aisd ttha arlaip-rcypel .eestaicrsn +41
cr  eth nami idefenefcr bneweet het 2 csesa si hatt in siht saec teh itptaen sah ighh PB +1
link981  So ni gnrirendtkae uegglaan teh oientuqs si esyeilsnatl sanigk hwo hghi prressue ni hte relartai stsemy is TON tedmsnirtat ot het sonveu ytmses ich(wh is erwhe AEEMD vseeo).pdl Btu yuo kwon yhet vhea ot dda lal shti info to tyr sncoefu a icbsa nicpepril dna keam oyu densoc essgu ys.elurfo (Got ti rowng yb eth )wya aseuecb of wtah reoref@r siad of Qkban sqt.isuneo +9
hello  fr@ereor hatw ear ouy kginlta ba?uto mhptialcy aniderag si hte wgnro ..ae.swnr +1
hello  ok eervn i.mdn i tog it. rdah ot dnsrnadtue /cb it was a gbi clkob of t.xet +2
asteroides  I think yeht mya eb nalgikt atoub het mingeyco epmtcsayorno semmicn:ah t/opnNc3swg?ije.tgc:/entfr=r154//liBmwb/fpw4tokboseKohhy/n5brngivu/...4li.oo"saeInr edc tiaerrla ro uvesno ueesrrsp sola seucidn yoicegmn otsconrticin fo staeoirrle adn ralaecprpiyl e,strchinps iwhhc isares irtroaarel esraeintcs reeythb( imniinmigz the siaecnre ni lalrypcia uresrsep) dan sruedec eth aaucrilovscmr sfcruae eaar vaeaalilb ofr ludif chn.greF xeoa xemelpa, ceesabu culrsaav htsomo umlsec ni iratelar and reoiraratl swlla rcttanosc nweh oxpedse ot elaevetd siutrclanvaar ,rsepsesur hits nmoieycg psesoern siarncsee leyarlprpaic ctrseseina nad crptteso isrleialpca mrfo a mtoanicntoc rsei ni hrtei clsvrruaaanit erep."urss +7
stsfyt  kmaes sen.se mosmeetis ew use s(CCoivtBiol)naad + nvtioineldao A(E)CI bocmo to nacaebl teh r,eusresp adn vnperet galekea dan mede.a +

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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payrlrlapeic saieencstr = rdsgnbieci hte srte.iealro eh's tog ainmmil ipeonrt in the i;eurn nda on nb.liuma the eyk saw gpnayi atinotten ot eht loodb sp.reeurs Prrsuese is etegldaru yb teh ssieanrcte selevss sa osbard lslac it ihwhc is eht rerteliaos aak irleayrpcpal rteasnics.e

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submitted by notadoctor(175)
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I've bene gacisernh for ym ruocse rof htis utb ntca' msee to ndif .it ,vowreHe eth ayw I htgthou aobut ti was that adeem sphpena iva the .lialaipscer fI heter is reesiacdn iaecnesstr iav hte plraeyrlacpi htrcnispes as hucm oldob ntowdlu' be able ot teg iont eth rcas.elialip Teh lbood uwlod adsnite get sdnuhet vai astsoomnsea to eht vsn.ie sTih ilaertc omfr icvco.yhypmoolgs xnlasepi ti a tltile erteb:t VC gy:oysoPhli Tsiues dEaem dna neerGal crPisinlpe fo nplarlisaTrayc Fuldi Eegacnhx

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submitted by chagas14(1)
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ybeMa hte tisenuoq is dlignea whit het cocntpe fo enmicgoy rrroaitale oscrnoainvsoctit hiwhc is a hoteanr dtma-niaee sinhmea.cm hTe per ypalcaril htprncesi ctnocart in ospesner ot a aeris in BP. I otg eth Q wnrgo ubasece I dkecpi mpicyhalt fo.wl They oelv ot go fro eth thaw" e"sel leetnme of any t.cpio I contna nidf nya osrnea ywh eth ctypmlhai tpioon oludc be orwgn :/

niwh5cko5=/g/etb.3tpBhtss4mv?li.ssl:o.rn.i/bw/waoNpr4K/onccCk ech eth furgei .41 ehT Mraign of ytafeS tsaginA Eadem omrFnaiot – Eadme efytSa acsotFr

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submitted by adong(144)
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In dodntiai to thwa sha aldaery been isda I kthin na ritoatnpm ionpt ni the noquiets aws yrulgtoear auttjnedssm whcih nopist erom twrdsao eloarrrtia lutg.enoari

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submitted by usmleaspirant2020(9)
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rb7//:dd03n9/f5o2t00.adai2e0of27/60dscpenocfufe9d1t50ed.6yu23t79cl1b9c2h2edet7e0

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submitted by ninja3232(11)
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"Wehn terlriaa useeprsr ,alslf gnyoecim neto is euddcre ni r,reoitasle eaedgscrni htrei ceanerssit to wlof nda nmiagitanin pcyaallir urpser.se eheTs bviaosrnteos sggutes taht rlaailpcy srpsreeu mya eb daegluetr vore eht esam ganer of repseusr ghsanec rvoe whihc wofl si ueadtrouetagl ni a eivgn raong. Iddnee, frmo the lr:o"enait

cbw5skhnlh/t4tsNn.v/K.oo/:Bm5ob3.wi/wp4gn/.i

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submitted by hello(429)
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hyw is lasmap tcnooci purseres ogrnw?

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rainlad  I knhit 'sti auescbe we dlwuo pxtcee ot see msoe rmoe rp/oabirneiluatmruainiu fi eth alamps toocnci errsepsu had ecneasdir ot noaetsepcm +1


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submitted by ferrero(48)
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A eyrv aismirl nstioeuq I avhe nsee ni sakQbn iwll aks wyh a itanpet with rhgti ahert ieluarf sdeo ton poleved aeedm nda eth aswenr si ircsedaen pitmhclay edgriaa.n I ogt this oqtsiuen rongw gliolinary ceaesbu I daenrwse logna iths ilen of eigonsanr but I nihtk in tsih saec ti all ahs ot do ihtw WRHEE het xeatr userprse si ogicnm r.mof nI sith enitousq eht pt ash isalodtci nteohsyenrip os ouy cna iknth autob eht prrsesue sa ocmgin wr"frdoa" so ccntsrigiton yecpilparrla siehpstncr anc tvpenre an rienaecs in repesrsu in hte yrcliaalp eb.d ovweHre rfo tihgr eraht iaerufl siht etxar uifld si mgoicn romf teh OISEPOTP itdcnorei kswadbrc(a ofrm the ghirt ahre)t nda cningostrcti crllpeaapiry trscpsheni nac do hnntogi (on opstoepi ieds of palcrylai d)eb - eth lony way ot pevretn amede si ot rnceesia apcythmil nagear.di

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submitted by usmleuser007(464)
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roAtci oDlacstii su rserPe

  • ghiH PTR = hihg DP
  • ghiH RH = high PD
  • iHhg SV = hhgi PD

icArot lystSioc sure serP

  • Hghi tytnoiritCcal = hgih SP
  • hgHi VS = hgih PS
  • oLw aepnComcil = ghhi PS

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submitted by spow(50)
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I lsoa ithkn ttah het tponi negib aedm ereh si btoau aemn aelrrtia suseeprr ()P,MA which is awht uyatortegoralu eyssmts ltyaclau haegcn esbda .no eecuBas he ash inracdsee PMA e(du to iacerdsne D,)BP teh aliasliecpr lliw ctocisntr ot nnmtaaii onncsatt ueprsflor/ews thhruog het rpcyiaall bd.e

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submitted by divya(75)
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i 'ntod nithk you eden ot ktnhi lla that cuh.m loko ta lla eht tsoionp nda knhti fo htwa shpenpa enhw ythe ,rceaseAin . ,B C, D adn F lal can ucesa tsiiaettlnir e Bum.date cagnenisri lepalyrcipra sancirtees leindyifet ontsed'.

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drzed  rencIdesa itymhlcpa wolf dowlu otn asecu nstriitaltie .deaem +1
123ojm  utb it tds'one sya enaseic"r "n,i it tusj ssya trlergouya" sujesatmdnt i".n +1


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submitted by usmleuser007(464)
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1. tocAir iitoacslD ereursPs .1 ghHi PTR = ihhg D P .2 higH RH = hghi DP .3 iHgh SV = hghi DP . 2 itAorc oiylScts srseerPu 1. Hhgi lncaoytriitCt = hhgi PS .2 higH VS = ihgh SP .3 Low lonCpiaecm = ihhg PS
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yex  co//:vM2uihs//ocroirpn.all1ctgotscpmyMcoytiih0 shiT pselh owmeho,s eth rsift arpt atbuo iraylplac r.rssupee +
usmlelol  th'tsa eht exp p::art e Th aeaegvr aicaryllp atshctryido eesrsrpu is drtieedmne by atlrerai adn venuso epusessrr P(A adn V)P, dna yb eth ritoa fo tlespop-aloc-rrpitya arssenecsit R().V/AR An iseneacr in eireth ataierlr or vosune rserupes lwil eercinsa laiyrlpca espreusr; vh,owree a negvi nagceh in AP si nloy utboa tfeoihnf- as fecifvete in gachinng CP as het eams toebusla ecgnah in V.P Baceues neuovs csartieesn si ltraliyvee o,wl genchas ni PV rea daelryi tetatimrsnd bcka to het ilaparcly, dan oynsecvlr,e ucesaeb arliarte tsnecriase si yeeltlarvi ig,hh ecnagsh ni PA era yroopl tsdmiraettn ondmrstwea to eht aiyalrp.cl +1


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