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Retired NBME 21 Answers

nbme21/Block 4/Question#45 (reveal difficulty score)
During an experiment, an investigator ...
NMDA receptors are blocked by Mg2+ at the resting membrane potential ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: pharm neuro magnesium repeat

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 +59  upvote downvote
submitted by โˆ—niboonsh(409)
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m/hv/tt/oyvz-uoc.wshtepbwwuH?wcDta=.24u:owQ fi ru ylaz liek m,e isht is a ogdo sheerrref voedi

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d_holles  miazgAn dvieo d.deu eSwohmo reenv raleden tish in ronue .oll +7
aag  oesmAwe oe!vdi sI isth hyw you nca evig 2Mg+ ot leapscima tpe,ntsai ceusbea fi o,s nmid admndgo .lbonw +4

effect of glutamate antagonist on pt with acute cerebral infarction = targets NMDA receptor

decreases calcium entry into neurons = decreased excitotoxicity = promotes recovery from acute cerebral infarction.

+1/- namesthegame22(14)

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 +5  upvote downvote
submitted by โˆ—cantaloupe5(87)
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sTih eno wsa cyirkt ubt I inthk you vlcโ€™dueo deon itsh one otihwtu lewekognd of MAND oteer.cprs Stme dtlo oyu ttah utlatmaeg aittvcaes thbo onMD-ANn dan MNAD sroeecrtp but ti etcadtaiv nyol onNAnM-D ersoecprt in the elrya pesa.h haTt amnse NDAM opretcesr tatceiav faert oDnAMNn- otepserc.r taTh nsmea iosnhtemg wsa nagldeiy ADNM proecert aitatvngic nda hte nyol ensrwa ttha daem neses as the gM nihbiiitgn DMAN at gsernti ne.tltpaio neOc eth lecl si dridlzoeaep by MonnDNA- rp,ctsoere MNAD psotercre acn eb tivetca.ad

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hungrybox  I god/frdtotn'i nwko siht dcaiotf nda rraowdne ti ot eth rtrceoc warsne and a rongw nersaw. Gusse ciwhh eon I hcoes? +15
yotsubato  a>Tht saemn hsotinegm wsa egniayld ADNM tpecorer acignaivtt and het onyl wrsane htat eadm eessn as hte gM hinitgbnii NDMA ta rigsnte aat .t i ltnpeo hW aemsk het iftnsga atgngi tiikecns cecoih iotccerrn t?nhe +5
imgdoc  AMDN octeerpsr rea thob lovatge adget dan dglain daget sannlh.ec eamGtaltu adn aaesapttr rae oondsgeneu inglasd fro ihts errec.otp dBniing of oen of the sniagdl si ueiqedrr to eopn hte anhcnle uhts it xitbeshi cthcsaitsaiercr of a nildag cnaleh.n If mE mae(merbn iaeptlont) si roem eaitnevg than 7-0 mV, igbindn fo eht dlnagi esdo NOT neop teh nhlenca (2Mg+ lkocb on eht MNDA )prert.eoc FI Em si lsse aegtevni htan 70- Vm nnibdig fo het gliand opsne het nlhenca (eenv hthuog no Mg+2 lbkco ta tsih E,m nenahcl will ton neop wtiuhot gldian .gbnndii O ut fo teh wsnrae ccehosi ylon MNAD seropertc dcklboe by g+2M mkase essne. pHo e sith .lshep +8
divya  setwe taxanneopli cgdmoi +
lovebug  l~y~l~rae .tewse uohnytak ): +


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 +3  upvote downvote
submitted by โˆ—sweetmed(157)
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At inrtges brnmeaem nteilopat eth AMDN erctsproe rea elkocdb by .+M2g Teh eatlgvo eneeptddn Mg2+ block is edvriele nuop olpdatoiazerin of hte tast-ycopnsip mmabrnee . eTh gdainl neepntdde titaanvioc of hte MNDA eetrocpr iurreesq nov-ccaoiaitt yb tow ng,sdali ylemna mtatauegl dan nl.gyiec

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 +0  upvote downvote
submitted by โˆ—okokok1(38)
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nA atnprmito edteral ainliccl lnpotaapiic is mernme:eibrg Oivaarn ratoatem nad terih otsiacosansi ti:wh MiAAt-NDn ceptrreo pc.neeilhatsi iThs eprnsets :as iyasrccPiht adbcersutni, ryoemm ,itdiesfc izrse,eus ki,siysadesn itoouancm iysiitbant,l unalagge .dfnsnctyiou

FA: 0;220 gp 282

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 -1  upvote downvote
submitted by vlodkadrinker(7)
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dn'to egfotr oabtu eht gM lbcko! . . . . . .

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chandlerbas  mJEuytohwvXobcuw:/z/hcgemP.pH?w=tta/w-tHf.s +3


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