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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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rFom taoPham .hC 2 .pg 14: POM edciynfcei restusl in cietdvfee onrcinosev fo 22OH to lOH.C ncseradeI kirs fro ddianCa nnsfix outlhhga( tmos pitsatne p)tmyt.aocisma oeluNtrib emiourtztal stte si lnaomr absceeu teh iysrpaerrto utbrs is llytauca listl acntti. sTih tatiepn ahs aadncid nenciofit adn adyde,el tub itlls nca lkli tpsha a, wchhi iesegnmly sego naolg ihwt teh cfta that eht orrperysiat utrsb si ltlis ,itcatn but oihtwtu POM it mya be eddinehr a lei.ttl

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namesthegame22  Ni!ce Ye,s hte TNB etst is amnlor itwh POM.D If it s,say "A terlnbuoi iueatotlzrm tste hwsos fetecdiin icnutodre yb a"lueyotrnscg = C!GD +

  • 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 is ot say HTBO NHDCD(AGP eaxidso deic)efniyc AND oeedsearioypMl eyciicdfne spsspederoi to teasslvopcei-iaat bug tnecon.iif

220A0F P019 olyn ehpasdzmie no G"DC tpeinat rae ta indeesarc iskr for nitecnfoi by aclesa+at csepise albacep fo ngtealrniziu ihetr won 2H,O2 nialevg htgecoyspa uohtitw ORS ofr tginhfgi i"ni.efcont Btu pate,rapnyl gcdcnoair ot siht esqino,ut siht ettntesma ldsho uetr to Moelysiodeaepr efydcceini sa lwel

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submitted by ilikedmyfirstusername(19)
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Wyh ton esxdroepui tumessid?a Its the epts hirtg ni teneweb HADPN ccr(hnio moaonguultsra esdeai)s nda MPO

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ilikedmyfirstusername  I guess ahtt odlcu nyaoltltpei anifstem sa na enve woers tpepyenho ni ?DICS +1
thekneesofbees  tIs caeebus DSO sormf 2O,2H btu 2HO2 is onbkre wndo yb .aeltsaac cSnie pthaS rueAsu si aclaaste p,oiiestv it lutodn'w be lidkel yb it wyaa.yn +7
minion7  sektnebsofheee@ ,,,,, os if itapten hsa DSO ECEDYII,NFC he tcna enaegret ,22,0H so eh is hmcu oerm btcsupielse to get ieklld yb ngao?smir? +1
topgunber  The fsrit ngtih ot pkee :gshiatrt tconsaier in CsWB rae amten ot inrscaee .O.R.S lhwie rsnciaote ni hroet clsle rea ot tge ird fo OR.S.. ersipdxeou is much soegrnrt tnah 22ho da(n si twha w'eer etgnist whti eht yeorstapirr tusbr sett fro NDCHA-GPD xOedasi dnyi)ce.cief Sedi o:etn DOS fneciciyde dwulo inetfams as oul hiegrsg' edsieas SA)(L eeubacs eudirsxpoe si so itcxo ti msadaeg the slecl eAtehems.tervslf OSD wrsok no ,O ti mekas 2H.2O yedxeolesiMpoar tseak 22OH nad rnuts ti inot behacl -(.COlH) heT usoqteni is igiylnmp thta HOBT idancad nad apsth oantcn be edlikl yb shit .ptteina hyTe rae otbh aeatlcas oeii-psvt hist nemas atht if het taintep na'tc trnu 2HO2 oint het tonrrseg -HClO hent het lasateac ipeosvit massirgon acn jtsu rtun ho22 itno awert adn xe.yogn opeh ttha emaks .sense +3


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submitted by mdmofongo(0)
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oseeplrdxeiMyao is eth lnyo eon laytcalu eildvnvo ni mkaing eefr .rcaadils tlesCaaa skaem H22O noti r,atwe Sueodexirp susmatdei lnseetmiai gyexon lci,raads DHL keams aaltcte n(o elor in eltcaiarb nlk,)igli dna NO eyshtn,sa skmea O.N

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b1ackcoffee  I othgthu OSD slao oemsc de(ocns) tfare yhawpat mai(gnk )2o2h to emak COHl— +1
mdmofongo  owN htta I ootk a olok ta the twapyah iagan oyu rea ghirt. gKonwni thsi Id’ ays atht feer aarlcids fo 2O ltlsi vahe a hcneca ot ecusa eoms d,maega sa rweeh yordHgne oxedprie stju esrves sa a eeiiaetrdtnm ofr efre aadricl ifarntomo. Tush SDO dnecieycfi eavles emos irclebatdiac aotnic btu OPM selaev noen? +2
igurl11  oS I dmises ihts too cb I asw iongolk for PDANH Ox (cb I retrpeednit edydlea ctioan asntiag ptahS A as ON feftce on seacltaa +.) hneT ryfbeil nceeroddis OMP tenh ieckpd SOD nad vedmo .on tBu OPM asekm snese bc sti eeddne ot kame echaBl owh( nethrsuolpi l)kli ;-tg& eDf &g=;t Cdaandi oic.etfnin tWha they enam yb eyald ni attvyiic for tphaS si kaingtl btauo teh rexat stpe ndeede ot sue eht ciera'sbat own 2HO2 to hnet mkae .hecBl.a. tuB tjus as teh aeibarct is kgmani 22H,O i'ts oasl gmvnorie it sugni seaacla.t So ti kate a etltli rgleon ot avhe nehugo lhaebc ot eavh a relitacadbci tce.ffe +


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submitted by stunna216(0)
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hyw si reht axefyprliehr dna a inbakisb sngi igmnean that trehe is an NUM no?iles

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csalib2  sehda u,p i itnkh e’yrou in teh grown qusnioet rtdeha +1


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