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Retired NBME 24 Answers

nbme24/Block 4/Question#39 (reveal difficulty score)
A 30-year-old woman comes to the physician ...
Decreased afferent arteriolar resistance ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: renal cookies

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 +5  upvote downvote
submitted by โˆ—sattanki(82)
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eThre rea wto snmmscaehi of agulgtinre eraln obdlo owlf, het oegmicny hmnamseci adn olluegbmautr-orlu ebfak.dce Tsih stunoqei assk ylperu tubao eth gecnmiyo ecmmnai,sh ihwch is ewher teh nterffea roaileert cornolts olodb owfl adesb yurlep off obldo rpeurses igenntre eht nkdiye, hihwc si ywh rdeeescad eefrtnaf aeirrtlaro tscresaein is teh steb wsearn teh( iateelrro si taniligd in nseropse to hte crseedaed lbdoo folw ni eptmatt to aiminant rnaolm dbolo olfw ot the yi)ne.kd

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nwinkelmann  a.Mn.. I otko ihst WYA OOT ARF, l.lo I ottyall dn'tdi rnezegcio eth lecu fo GFR dna RFP as giatsyn hte mesa to tlle me it wsa gtlkian aoubt ml,nrao ohyociilsgp oouaatriletngu. Sllyi iakemts! +7
j44n  I rage.e lAl I wsa asw a ontdsees rrtaye dna AITI ncsoirtcntoi +

w/o knowing autoregulation. You want an answer that will maintain RPF and GFR. Decreasing Afferent arteriole => increases RPF and GFR because you have relatively more blood coming in. If you decrease both afferent and efferent => increase RPF but GFR may be unchanged (e.g. dopamine effect) Decrease efferent => increases RPF and GFR will decrease

Increase any of the resistance and your kidney will go bye bye

+6/- peqmd(75)


 +4  upvote downvote
submitted by โˆ—ihavenolife(81)
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necigyoM emmahscin wsork in teh ffertnae aeiltrore ttha ipsspleu het murg.eoluls hWen bldoo sseerpur ercanises, mohots cmules cllse ni het lawl of het ertorlaei era tshdcreet nad opnsrde by canrnoitcgt ot rtessi hte uess,prre intgesrul ni iteltl hgnace ni ol.wf neWh loobd uessperr ,dorps teh mase hmosto msluec lslce arxel to owrel iaecst,esrn lliawogn a doutnceni even lofw fo bldoo.

lkcCi eth lnki to rdae aotub lmruerlruabgotou feeabkdc as el.wl wao/nernmlro2citis-tohe/ln-///ornge-ecahoalcltyunudorsumgstee-na.fpufp:-.lbasr/pol

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 +0  upvote downvote
submitted by โˆ—thotcandy(131)
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oT dda ot wath nevoreey lsee ahs s,dai hist slied si retytp good: g30rledc53m.iye2ps1.dl1gp_stmd/oesa/es/thip0ls2eiaj/2isl/./4:

eht mtpopr sasy RPF dan RGF era n,dngceuah tush RFB is loas eungcn,dha ot od ttha, het lrnea erteisra lwudo have to aeesrecd ihtre sesi.eartnc

w,vHreoe as ohwsn no page 157 of F91,A a rsoniinttocc ro lainidot fo ftneeref ouwdl gcneah FF hwihc samne RFP dna GFR a'trne nhncggai ylqueal - tshi si dreul tou yb the pmtopr sganyi erhtye' cu.ngdnahe

eaLevs us with a scredeea ni rfteafen s.tnceesrai

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