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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 eryv milsrai oeuistqn I veha eens ni bsnQka wlli ksa wyh a ntetpai hitw irgth arhet feilura dseo not peedvol aemed nad teh areswn is eisrneadc hlipcamyt e.anrdgia I gto this eousiqtn orgnw nrlgiyiola cuaesbe I nesweadr glaon hist line fo nareosgni utb I ikthn in htsi sace ti lal sah ot od ihtw RHEWE hte etxra eserrspu is oigcmn fmor. In thsi qeusntoi hte pt sha iidscloat htprienseony so uoy acn hktin bauot het uerrpsse sa mgcnoi "aw"rford os ccrtinngtsoi ceprylialrap irtseshpnc nca rnpevte na snieerac in sperures ni the crpylaail de.b eoevrHw orf rhigt tareh afuleri isht txera fiuld si comnig fmro teh EPTOPSIO inteicdro acadb(rkws fmor hte rihtg ha)rte dna tcncgiosirnt lprlrpiceyaa stihecsnrp nac od innhotg o(n spopetio sied of ialpcaylr )bed - het oynl wya ot pnvreet admee si ot srneceia iympahclt eaniagdr.

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seagull  Teh iteqnuso eraclly aeld us ot knhti bouat sOctimo seupserr yb lnkigta abuto potrien adn rnie.u I orndwe who amyn oppele used thta niel fo nogrenisa k(lei ?sylef)m +20
mousie  etraG oeaxiplt,nan I chose itymhlcap iandreag rof hte sema ngsnaoeri sim(iarl Q no fteefnrdi bk)na +9
sympathetikey  My nnaeisrgo aws uhcm mreo lpsmisciti m(aeyb oot selpm)i tub in ym dn,mi ssicloyt PB si eddimteern yb caadiCr tOtupu adn scaoidilt PB si eddmtrneei yb e.eioarlstr fo,eeTrehr awth omecs erofeb hte lyrliaacp and eesuaglrt ia?ntsrecse sel.ioArert s'aTth hyw I siad ttah pael-rpcryila ar.sescntie +41
cr  eth mnia nreedffeci eewtebn hte 2 secas is atht in hsit ecas the patntei ahs ihgh PB +1
link981  So in nragidetnekr aaggenlu het nisoueqt si aeilneslsyt gkinsa owh ihhg eesurrps in teh lraerait tsesym is OTN ttmdniatser ot eht nsveuo smesyt (ihhwc is rehwe MDEAE .p)elvodes uBt oyu wkon hety hvae to add lal hist nifo ot try fcnouse a aicbs nrieplpic nda amke oyu nsdeoc egssu ols.yeurf Got( ti rwong yb eht wya) ubescea fo htwa rf@reore adis of bkanQ tuiesqsno. +9
hello  @rreeorf hawt ear uoy igalnkt ?bauto ylcampith aiagednr is eht grown r.ws..ena +1
hello  ok eenrv .idmn i tgo .ti ahrd to uenntddars /cb ti was a big clbok of ttxe. +2
asteroides  I nthik yeth yam be nialtkg ubato eht cenmiygo oscpteomnyra :ahmsecmin vo/mpr.ff4nrjlok:ciu/h/34nw.ttogwih1sBei5lts/4/wK.bo/g=enb?oNcrgyi/.tpbneo5.eacs"erd nI rarilaet ro nevuos erurspes soal neuicds ceoimyng occttnirsino fo elitearrso dna aeyarirlppcl nricpess,ht iwhhc aisesr lroaeirtra stecsnreia ehyter(b ninimzgiim het eeiscran in lrapcliya ure)ssrpe dna drseuce teh aroluisrcvmca aruscfe aare elbvaaila fro ulfid h e.xoaneFgcr e,palmxe beusaec csvlruaa thoosm mcleus in iaatrerl dna iaoratelrr llaws coacrstnt enwh exopdse ot levdaete trnvsacliruaa errsse,pus htis nymioegc esropsne irecnasse ceayaipprrll cenaretiss nda rctesopt alcrplasiie orfm a ncnotaicmot reis ni hetir vicnarsrtuala "erprs.esu +7
stsfyt  keasm se.esn metsosmei ew use nCCta(osividBol)a + nieavltoniod ECA()I cboom to aeabnlc the srser,pue nda tnrepev kealage nda emda.e +

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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ayecpiaplrlr cseaternis = ndgsieircb het er.oartlies he's tgo mniimla tiporen in eth ri;uen nda on nubl.mia het yke aws aipngy otiettann ot het odlob puersse.r rsPuerse is lreeudgat yb the esneicsrat vlseses sa arodbs lcsla ti hwihc si eht rlisaetreo kaa rpyapeacrlli rnas.eitesc

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submitted by notadoctor(175)
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Ive' eben asgiehcnr ofr ym erocsu ofr htis btu nact' eesm to nfid it. ,Hvwoere het wya I guthtoh otbau ti aws atht deeam nepspah aiv het piecarslali. If heert is eincdersa sceasrteni avi hte apilarepcyrl srisepncth sa uchm lobdo unlwdo't eb ebal to egt into eth li.arciaelps eTh blodo lwodu teadsni teg sdhntue avi oaostnssmea ot hte .vnsie hTsi creaitl fmro ogchpvcm.sooyiyl inapslxe it a lletti tret:eb VC gsoyloiPy:h Teuiss meEda dna reanGle iircplePns of isprraclnaylaT Fuidl Eexhnagc

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submitted by chagas14(1)
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ayMbe eht itsoqeun is ngiaedl twhi eht contecp of eyimncgo rreotraial cavinorossttonic ichhw si a rnehato i-aetaendm h.macmensi hTe pre lypairlac itrnchspe tcoarntc in seroneps ot a eirsa in .PB I gto hte Q ogwrn aeubecs I kdicpe amhliytcp wfo.l yheT eolv ot go rof teh twh"a "eesl elneetm of yan cti.po I nncato fnid nay eansor hyw eth cihmlaytp otopin ulocd be gonrw /:

/hbwlot:.n=rww//iNl/hmssonsangrs544icptcc5kvBp?o.eit.3obK/. cCekh hte urfgei .14 eTh gMrnia fo faetSy natsAgi mEade niomoatrF – dEeam feaySt tacsFro

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submitted by adong(144)
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In ioadnidt to wtha ash rlayead nebe aisd I htikn na mintartop intpo in hte intusqeo aws geauroytrl jnusetatmds cihwh psoitn erom adwtosr aeoarrrtil .goautenlri

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submitted by usmleaspirant2020(9)
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7d7dt/2.27fel30et.fc9edpaceb1/09d2c9b9cetod00ynea0:55ft6u6/32d1o2i/nufsr20o07deh

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submitted by ninja3232(11)
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"nWhe aliraetr rsruseep s,afll omynecgi noet si eddcreu ni e,olatersir cdagneresi irhet rcetansise ot lowf and iianmnnitag ralailypc spserrue. seThe teaosvbsiorn gustsge ttah alraypcli seerpurs yma eb gudtleaer eorv teh amse raneg of pessruer ecnahgs erov chihw folw si gareuutlaetdo ni a enivg r.agon ,Ineded fomr het "toe:airln

5Ntw4inbtwc/.4/3oo.:.m//5K/Bwshn.bsklonhgipv

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submitted by hello(429)
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hwy is maalsp tnciooc epssreru go?rwn

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rainlad  I khnit s'it esuaceb ew luwdo ctepex ot ees emso oemr anmiabinur/tieoirprualu if eht paamls nooitcc rperessu had cniaderse to tecomesanp +1


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submitted by ferrero(48)
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A ervy mrisila uesinoqt I hvea ense in nkQbsa lwil aks why a naptite wtih thgri herta uelrafi eods not eloevpd edmae dan het arnews si aesincder ahtyclpim ia.rngaed I gto sthi oeqtuisn wgonr ilnrlaigoy secbuea I arwnsdee ngalo tshi nlei of nenisgora tbu I inhtk ni hits cesa ti lal has ot od htiw WRHEE teh arxet rsereusp si cgonim ofrm. In hsti ituqeson het tp sah iclaitdso pnniehoreyts os yuo cna thnki btuao het eprserus sa cigmno rw"daro"f so cnsnoitrtgci lyrlaaeprpic sprtshnice cna eptvnre na ierasnec ni peruress in het alcylarpi e.bd eevrowH ofr thgri raeth eralfui hits erxat fidlu si cognim rofm eht SOTPOIPE dteirncio bwards(kca fmro eht grith trhae) adn cirngsoinctt crrapalilepy psenhtsicr can od ointghn no( oipopest ised of pcaiylrla ed)b - hte olyn awy to ntervpe dmeea is to iraecnes haymiltpc nidaa.egr

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submitted by usmleuser007(464)
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Atcrio itoiaDcls Pseursre

  • hiHg RTP = ghhi PD
  • gHhi HR = ghhi PD
  • Hhig SV = hihg PD

crioAt lSytoics rPse user

  • Hgih ailniCttoycrt = hhig SP
  • Hgih SV = hihg PS
  • wLo Cplnciomea = ghhi SP

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submitted by spow(50)
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I sola itkhn htat the opnti ebnig edam ereh is taobu mnae ialerart suresrpe )P,MA( ichhw is tahw ettuogrlryaoau msysets ltyculaa hcaegn adsbe no. seaceuB eh sha aienrceds MPA d(eu to ieaesrndc )DBP, eht arclepailis lwli ccitrotns to ainaintm tnactnos r/eplfwserous tohuhrg eth iaaplycrl de.b

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submitted by divya(75)
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i tn'od nkhti oyu dene ot tinkh lal hatt mhc.u lkoo ta lla the posotni dan nkith fo htwa eapnhps nehw yteh aeA,icren.s B, ,C D nad F lal acn caues areitisintlt detBu.am e siaeicngrn preaailprlyc tenicasser yiedeintfl tds'.one

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drzed  aIseercdn thylicpma owfl loudw nto uaecs lsaetiittinr dmaee. +1
123ojm  utb it noeds't ays csnr"eeia ",in it sujt ysas rao"tgylure sntasuemtjd i"n. +1


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submitted by usmleuser007(464)
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.1 irtcoA litcosaDi Perssreu 1. hHig TPR = hhgi DP 2. higH RH = ighh PD 3. gHhi SV = ghhi DP 2. cAorit sitylcoS usrePser .1 gHhi ritnatiloctCy = ighh P S 2. hgiH VS = high SP 3. woL eiaCmolpnc = hgih PS
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yex  .porocMiayol/strhvo/th0/:liicngcMpcusomi1/y2tc isTh sehlp ooseh,wm eht sifrt aprt utabo aayillcrp ps.eusrer +
usmlelol  t'hsat het pxe t:apr: heT evrgaea laipaylcr ahoitsyrdct sspeuerr si ndieretedm yb lireaart nda onvseu sprrsesue (PA dan VP,) and by eth ioatr of ltpcyali-otroarep-sp tssaircenes AV).RR/( nA sinaeecr ni eertih rtareali ro nouves eursersp lwil arecisne pliacayrl pseuerrs; ,orveehw a gvien chenag in AP si yonl tbaou ff-thoien as veeiteffc in nangicgh PC sa eht same otuseabl agnche in .PV cBaseue vnseou iseenrstac is evleryaitl ow,l eagcnsh ni VP ear rilaedy tisrteamtnd kcba ot eth ,arcilpaly dan eevylcsr,no csueeab lreairat ecsreisnat is vreyltleai hi,gh hegcasn ni AP era pooryl ttestndamir nswodmeart ot teh raipla.lyc +1


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