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NBME 21 Answers

nbme21/Block 4/Question#34 (reveal difficulty score)
A healthy 8-year-old boy is brought to the ...
Stimulation of the release of biogenic amine neurotransmitters 🔍 / 📺 / 🌳
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 +27 
submitted by drdoom(1046),
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latiscuoCanl rof dad. heT obarpitylbi of hte hrefat niebg a arerirc si 32/ cseni it si onnkw atht eh dtones’ aevh het aesiesd. Tnhe teh oblripytabi fo imh agnsips ti on to his kid is 21/, th:su

  • liPboyiatbr of add gbein raircer = 23/
  • tyPirbibaol of add gnpsisa no aeessdi eleall = 2/1

alonctuasiCl ofr mmo. htiW eht ygbanedWri-Her ,Pleprcnii you cna eufrig tuo the paitiorblyb fo teh hormte eignb a cra:rrei

q = 0t40q(,sr/)010 = 12/00

,So 2pq = 2 * 0/021 * 909102/, hwhci si rxppao 10.1/0

For het dchil ot get the aellel mfro ,mom two hstnig deen to pephn:a ()1 mmo tusm be a iaerrrc o]”er“tothe[geyz adn 2)( mom mtus spsa hte laelle to dclih:

  • oblrPbaiity of mom gbein arrcrei = 1/100
  • riioaPbltby of omm sginpas no daseeis lellae = /12

gPnuti it all hrgoeett. N,ow obimecn all eeh:togtr

= alitibrbpyo( fo dad eignb reicarr) * ibpolayt(rib fo add assnigp no aisdese )eelall * opiyiblt(rab of mom iengb erairr)c * y(iatbbiropl fo mmo ginsaps no saeieds lal)eel

= 32/ * 12/ * 1100/ * 2/1
= 1 ni 006


 +18 
submitted by beeip(134),
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txaE"tiyrco minao acdi"s srefer ot m,ageltuat wilhe ""oigicBne taplraypen frseer ot tyosrnie, eth uescrrrop AA ot anmdopie dan eiop.rn

sahusema  Amphetamines use the NE transporter (NET) to enter the presynaptic terminal, where they utilize the vesicular monoamine transporter (VMAT) to enter neurosecretory vesicles. This displaces NE from the vesicles. Once NE reaches a concentration threshold within the presynaptic terminal, the action of NET is reversed, and NE is expelled into the synaptic cleft +10  
mumenrider4ever  FA 2020 pg. 239 +3  



 +3 
submitted by kolivera(3),
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inceogBi imena NTs :rea A,D EN, ip,E e,isaHintm amp&; Snrneoito




 +3 
submitted by meryen13(30),
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ibgioenc semna opdedruc by a vnilig clel aak ew dcoeudpr teh iamno idca iuntrnstereartmo morf iohigcbgnnstm.oeie nuonremrtrtetasis era ians:tmeih (rmfo ide)tnsihi s noeiotrn f(omr ppo)atthyrn pe i, rno ei,p aidopemn (rfmo lnylnaahniepe nda ynroties )




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