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Retired NBME 19 Answers

nbme19/Block 3/Question#22 (reveal difficulty score)
Blood gas values: arterial O2 ...
Anemia 🔍 / 📺 / 🌳 / 📖
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 +16  upvote downvote
submitted by cassdawg(1780)
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sThi is my tbse npietrttarnoie twhi a orsuce dna apaprragh ormf hte uosecr es:ltdi

nI ea,anim olenmgboih vlliaaeba si scedeader. shTi aseucs ddaescere oyxneg gdinnib, dan ttleaiyuml essl ynxego is vlilbaaea rfo leraees oont iseut.ss

  • PO2a iwll be inr-aohmsl ecbeusa the aarirelt lobdo ilwl stlil iuartibqele in hte lgsnu vnee gtuhho hte eoomignblh bngdini si aseeddcre htnki( of OC ionogpsni rewhe Oa2P solok )l.omnra
  • lrrtAiea O2 ontncte si lltuyaac sdeacdere ebucesa rethe si esls gyneox laott eiaavllba sel(s inombohleg udbno to eygnox)
  • dMixe senouv 2O centotn %() is edesreacd rof a limsair nsroea nad osal ofr teh onaser tdlsie beowl
  • oVensu O2P si giltyhls aeredsedc eeubasc ethre is ighher gonyex atetoircxn ta usitsse eud ot eht scmenapotoyr mseancmsih fmro essl ltoat 2O ibneg rleivdeed and sels O2 ibeng andudeol csni(e ereth is essl gonlbamieh ndobu 2O ni eht rifts apecl in anmae)i
  • CO2P is i-nrahmosl fro iamsril oresasn to teh sirft letlbu

"eTh lyaicrurotc jmsuesandtt in pnreeoss ot mineaa lilw be mrisali to othse fo eth irgnepcde acse. nI orrde to anmainti ssetiu xeygno stiupnmncoo at isbnalee ellevs aedcsiatso ihwt a nlomra xynoge raycngir tpiycaac fo ,dlboo the cnrutieod ni oxyegn viryedle liwl edla ot na ranicees ni rialacply s,ruopifne adn xeongy rxtaeciont wlli enisra.ec aleAroirrt idlntioa nda yitissocv uinedctro f(or hte aecs fo a oruecitdn ni t)cH llwi esuca bdool wflo dan nxeoyg yeevirld to nscie.are hotB neoygx taoinecxrt dan yogenx lyerdeiv liwl ciuoetnn ot cisenear unlti the ongyex rruesetqnemi of het uiessst are etm ro tiuln the acpayitc ot serenaci engxoy enicttxaro nad eilyervd ash eebn edc.rhae ehT rsuelitgn oatisniut is eno ni whhic vseonu gnxeoy neotnct and v2OP aer ssel hnat anomrl. cSien PaO2 is rmlona fro lal hte iemacn tiouistnsa n,sdcreioed stih tdefce is ton ssdene yb hte rtrpaiyesro cmeerpesoc.thro hs,uT rneicngsai eht idpriens gyenxo ronfcita si not luplhfe ecpxet ofr het sace fo OC igni,ospon rhwee ighh pdnrisie gynxoe ge.(,. 00%1 xegyno at mebtain mctoarebri sesrurep or eenclamtp fo eht scjebut onti a abhcreypir mrcb)hae pmscoeet ihwt CO igndbin at eht meeh esti rac(ell Hldsnea'a stifr "la)w. - ng/io5oBKwws/c4/pn.h1:tn.3vN.k/1tbholwb/.smi

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blueberriesyum  A,sol in irtsf adi rserpotiyra hcartpe orf ianaem it ,ysas Hb nocc is wo,l 2%O sat si anmlro, ildsosedv xgyoen P)(aO2 is ,nrloam ubt otlta O2 tntnoce is l.ow olTat neoygx teconnt si het smu fo yxngoe dnobu ot Hb nad ssedildov egx.yon (AF 2108 gp )496 +1



 +2  upvote downvote
submitted by an_improved_me(91)
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lsA,o to iantiemle eth otrhe t:pnosio

tovtynaiinoHllpe dwluo ehav an icdesaenr C2Op adn eecsraedd p2O.

gihH tdilutea dwoul aveh wol O,2P low C2Op epiHollyvitna)ert(n

VQ/ tcmmhisa wuold aols ehva a olw p2O dna hghi 2pOC, scnie esgas ear chxae.ignng

iyHltvproeanentli wodul ehva a aolnmr PO2 and low 2COP

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