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Retired NBME Free 120 Answers

free120/Block 2/Question#17 (reveal difficulty score)
A 6-year-old girl is admitted to the hospital ...
Myeloperoxidase 🔍 / 📺 / 🌳 / 📖
tags: biochem repeat

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submitted by itsalwayslupus(48)
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omrF aamotPh C.h 2 p.g :41 POM ineefcidyc tussler in eidecvtef oovrncisne of H22O to C.OlH endIrseca kirs orf anadidC nnxfsi hgluh(ota toms eaptinst .amopc)ytiamts ouirbeNtl etuirloatzm ttes si raonlm cbsaeue the satoryrpire srtub is aalyultc stlil ittnac. Tshi taitnpe sah ndaicad toeinfcin dan alde,edy btu still anc likl asthp ,a ihwch egnleiyms ogse galon thiw the ftac htat the ieostrrpray bsrtu is isltl ,atcint tbu witotuh MPO ti mya be idhrdeen a ltilt.e

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namesthegame22  !cieN eYs, eth BNT etst is noamlr whit MOP.D If ti y,ass "A nrulieotb atezutrmoil etst swohs feenditci niocetudr yb nrotacusyl"ge = G!DC +

  • Myeloperoxidase deficiency (MPOD) is a common inherited immunodeficiency syndrome characterized by the inability to produce hypochlorous acid within phagolysosomes. The disease is typically mild and may present with recurrent Candida albicans infections.

  • CGD is caused by NADPH oxidase deficiency and results in impaired intracellular killing of pathogens. This presents as recurrent pyogenic infections with catalase+ organisms such as S. aureus with normal concentrations of leukocytes and immunoglobulins.


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submitted by amy(4)
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oS atth si ot say TOHB A(GDPCHND dxieaos n)efeiiycdc DAN eirMaeodlpysoe eccydeifni ssrseepdiop ot etpaciaeavoti-sls ugb netiiocnf.

002FA2 19P0 nylo ipehezmasd no GCD" natepti are at ieadsnerc srik ofr cnofeitin yb sta+ecala pcsesei pebaacl of uzngiaernlti ihtre wno 2,OH2 vlaegin sytheopgca utohwti ROS rof gfinhtgi oenc"ni.fit tBu yplrapae,nt acigrndoc ot tish eon,utiqs stih tetensmat soldh ture ot odyeliroeaeMps neycdcfiei sa ewll

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submitted by ilikedmyfirstusername(19)
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Wyh ton xriedopseu s?smaueitd Ist hte pste ghitr in enetbew HNADP ircchn(o luoasnturgamo siads)ee dan POM

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ilikedmyfirstusername  I gusse atth oulcd loeilypttan ameifnts sa an neev wosre ptehenopy ni D?CSI +1
thekneesofbees  sIt caueseb SDO morsf H2O2, tub H2O2 si orbnek down by tael.casa Sienc taShp usAeru is aalectsa t,eoiipvs it utlwdon' be klilde by ti yny.waa +7
minion7  ohfk@eeeteensbs ,,,,, so fi eanptti has SOD DFCEYCEII,N eh actn grateeen H,2,20 so he is uchm emro sceteilspub ot tge dielkl yb gm?ai?rnso +1
topgunber  heT srift ngith to epek ita:shgtr isatenroc in WsBC rae antme ot neescira R.SO.. iwleh encaoistr ni herot csell rea to tge ird of SR..O. rspiexuode is hcmu rntrogse athn 2h2o d(an si twah er'ew ntteigs wiht the isopearrrty sbrut ttse for CH-APNDDG sidOeax icid)ef.ncey Sied otne: DSO icfyniceed wuldo ntsafemi sa ulo 'egghris seasedi )ALS( ebceaus srpxoiduee is so txico it aamgsde teh elcsl etetlrse.vhmAfse SOD wkosr on ,O it amsek H22.O exdiyeolsraeopM eakst 2OH2 nad urtns it oint labhce -)C(O.lH The qnstouei si lpmigniy tath OTHB iadcand and phtas notcna be llkedi yb hsit ptneti.a eThy are htbo aatsalce ptsi-iveo tshi ensma atht fi the tnpatie nt'ca urnt 2H2O toin het srgreotn HO-Cl nthe eht cslaatae eiistvpo ainsmgosr nca tujs rtun 2ho2 nito artew dna eongy.x eoph atht amesk ssnee. +3


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submitted by mdmofongo(0)
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oploeeaxirsydMe si het nyol neo ltuyacla voevndli in ikgamn eref ir.sdcala asCaltea smkae 2O2H ntio ert,wa Sduxeporie etiudassm esimelanit nogxey dlciaras, HDL mseka ataeltc (on orle ni tciaeblar li,)nilgk nda NO sneyhs,at mkaes O.N

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b1ackcoffee  I htotugh SOD oasl smoce d(n)ceos tafer tpaawyh ngikm(a ho22) to maek OC—lH +1
mdmofongo  oNw ttah I okot a kool ta hte apatywh aagni uoy ear gt.hir ngKoinw tshi dI’ asy atth erfe rdacsila fo 2O still hvea a acench to uscea omes d,eamag sa hwere nHyergod rdxoeeip tujs rsvsee as a midienrtatee fro eefr iacdrla a.nriomotf Thus DOS cdiyineefc leesva emos irbcdclieata otacni btu MPO salvee noe?n +2
igurl11  oS I mdesis thsi too bc I was kgnoiol for ADHPN Ox b(c I nrtipeedetr ayledde nitaoc gtnaais thSpa A as NO cfetef on claetaas +). eThn eilybfr dsnioerced OMP hnte idepck DOS nda mvoed .no But MOP esmka snese bc sit enedde ot mkae haBelc how( henuptsloir kil)l g&t-; Def t=;&g ndCidaa tceii.ofnn thaW ehyt maen by adyle in iictvyta fro htpSa si lkntaig bouta hte rteax etps deedne ot use hte bataecsi'r onw H22O ot tnhe mkea .Bch..ale But tjsu as the creiabta si nmgaki OH2,2 t'is asol irnevomg ti sngui acaatsle. oS ti aetk a ltlite negorl ot veha noeuhg ebhalc ot eavh a aitcbreildac feect.f +


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submitted by stunna216(0)
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why si hetr ihxrlerpafey nda a iisbbkna nsig naimnge atht eerht si an NUM io?esln

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csalib2  hased u,p i hkint ueryo’ in teh ogrnw qniouest hredat +1


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