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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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uuhw=?tyev.w4cch:v/.wb2H-tzsQDatutpow/ow/om fi ur azyl elki e,m hits is a dgoo serrefehr eovid

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d_holles  ngAzima veodi .dedu mohoweS nreve edrnlae iths in rneuo .lol +7
aag  Asomeew deovi! Is iths why uoy anc eivg M+2g ot lscaeimpa eaiptnt,s buacees if so, ndmi danmdgo .wlnob +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(13)

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 +5  upvote downvote
submitted by โˆ—cantaloupe5(87)
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hTis eon swa yirtck but I ikhnt ouy uvdeโ€™ocl odne itsh one tituhwo ewnogldek of NAMD socr.eertp emtS lotd you that amegltuta aeisvctta boht MDoN-nnA dna ADNM oceperrts utb it datieatcv onyl DAMnn-No estpceror in eth lreay aph.se hTat esnma NMDA cseertpor cetiatva efatr nNAMno-D c.psotrree atTh nasme ihtengosm asw ngeiayld ANDM rrepocet ntivtigaca adn hte olny aewsnr atht eamd nssee as the gM btiiignnhi DNMA ta rinesgt tntl.pioea cOne eth lecl si pazreoiledd by AoMnN-nD rrspco,tee DNAM sotepcerr can eb attceadvi.

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hungrybox  I odfdn/irot'tg wonk hits aoictfd adn aowdnrer it ot hte ocrerct nwaser nda a worng w.nrase sGesu cwihh eon I shoec? +15
yotsubato  >hatT smena osimngeht swa ideaglyn MNDA tpecrreo iintavcgat nda hte lnoy enraws that emda neses as teh Mg gtibnniihi ANDM ta nigetrs otWant p lih aet. eamsk het faginst iggnat stincike ihceco torriccne eh?tn +5
imgdoc  MADN orcstpeer rea othb lgvtoea agtde dna dilnag gedat sl.canenh aletGuatm and rateapsta aer negdnuoeso ldsinga rfo hits eorpre.tc Biidnng of one fo hte lasingd si uirqedre to pneo the lnhnace uhts ti xtsibhei arttieccishrsac of a ldnaig .hncnale fI Em ma(rmbeen pnaeottl)i is orme tavienge ahtn -07 ,mV inbdign fo the inadgl oeds NTO enop het elcnahn (2M+g lcobk no eth NMDA e.)pcorret IF mE si lses igtvaeen htan 07- Vm bdining fo het alndgi eposn teh lcnenha even( uhhotg on gM2+ oblkc at thsi ,Em lhanecn llwi not opne tihtwou aignld gindibn. uOt of eht wsaenr sheoicc only DAMN roreptces kelocdb yb 2Mg+ seamk esn.se Hope this sel.ph +8
divya  eetws onpaxelnati iomdgc +
lovebug  e~~a~lyrl .twees natoyhuk :) +


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 +3  upvote downvote
submitted by โˆ—sweetmed(157)
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At ntgsier rmeamneb oaeniltpt eht MADN erprotsec rae cdlkebo by .2+Mg Teh legotva epdedtnen g+M2 obclk is lveredie oupn oiatnlpeodriaz fo teh ppycosst-nita mmbeaern . Teh dniagl peeedndtn tcoavinati of eth DANM ropeectr usreierq ioacto-inctav by wto dgsani,l mylaen tmleutgaa nad ngecyi.l

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 +0  upvote downvote
submitted by โˆ—okokok1(38)
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nA tpraonitm dlaeret ilniaclc litiaocnppa si mberm:egnrei iarnvOa oaatrtem dan htrie ssaosainicto i:twh ADNMAtni- tecoprer en.silctphaie hiTs rssepnte a:s yhiccstPiar acsidtb,uner moyrme sfd,eciit zesiure,s ii,dyaensssk onucaotim sitbl,tnyiai lugenaag .inuofcdysnt

:AF 0;220 gp 282

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 -1  upvote downvote
submitted by vlodkadrinker(7)
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n'tod ftrgeo touab eth gM !cklbo . . . . . .

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chandlerbas  b?zmEHtwHwt/-h/oPmp/weauut:ocyXgfhv..cstJw= +3


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