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NBME 19 Answers

nbme19/Block 3/Question#22 (reveal difficulty score)
Blood gas values: arterial O2 ...
Anemia πŸ” / πŸ“Ί / 🌳

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submitted by frimmy_11(1),
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nilgottM nad onsiegtfn of reiaonrt alwl no uasyotp gsutesgs it was ont lroed htan 42 .rsh aDhte orfm lataf arayhmhitr lkei Vfbi- sotm oonmmcyl csruco wnihti one ady fo teh .MI atTh s,aid once csra sah medfro ni mlrcoadayi essitu i,t oto, acn uaecs .irrhmhtyaa

submitted by βˆ—cassdawg(1533),
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Tish si my btse retnoperattiin wiht a urcsoe nad paahpgrra rmof hte sceruo :seltid

nI naeami, ihloebngom ivbaeaall is csdaedere. shTi esusac desedreac ogxyen gnibnid, nad tlmayltieu esls gyxneo is liaeblvaa ofr eleears noot isseut.s

  • 2OPa wlli eb slnmohari- bueceas hte tralaier obold llwi llsit eeaurltbiiq in het gsunl veen ughoth eht ihbooemnlg nigibdn is erdedcaes tki(nh of OC ooisgnnip hreew POa2 kloos na.)roml
  • lAiertar 2O ntntceo si atcallyu ceedrdeas seaubec tereh si slse gnxyeo total laelvaaib es(ls emionhbglo udbon ot yogne)x
  • ixdMe unovse 2O tcnneot )%( si srcaedeed rof a malsiri asoenr adn soal rfo the sorean isldet eoblw
  • Vuseno 2PO si sltihylg csdeadeer eesbcau theer is rghhie xyeong tatcronixe ta ussstei eud to teh eyorpctomsna aecsmihmns frmo essl toalt O2 ngebi dideerlev nad less O2 ebngi eudodnla (nices ehtre si lsse eilngohamb dnbou 2O in eth fitrs claep ni ma)naie
  • 2COP is losrhainm- rfo irsmail saonser ot teh srtif tulelb

"Teh ltcoiarucry tmsnuesdjat ni peessnor to manaie lwli be iairmls ot teohs fo eht ingedrepc aecs. In edrro ot atanimni uessti gyexon tmoioncpusn ta alibesen slvele saateoicsd hiwt a rnmola nogxey iryrnacg cpcitaya fo bdo,lo hte uitcrendo in goyxen eydlvrie lwil dela to an iscarene in yrlacilpa ,oiusfprne nda exogyn ictxrtneoa iwll .rseienca atirlerrAo ioadtiln nda ovisyscti iruocnetd (rof the aces of a encuirdot in Hct) wlli caesu odblo flow adn nxyego veyeldri to .isecrena Btoh nogyxe ttnoxeaicr adn ogxyne erevidly ilwl ioenutcn to snreeaic ilnut hte ogxeyn neieremtqrus fo the usiests aer tem or tilun het cyicapat ot iaenesrc xgoney tcetnrixao nda evirldey ahs eben .heceard eTh tguseilrn nioauitts is oen in cihwh osevnu xgneyo ontenct and P2vO aer sesl hant ma.onrl ecSin 2POa is onmrla ofr lal hte naciem ssoiiattnu ,deniedrsco stih tecedf si ton esesdn yb teh irertoysrpa orpechetecomr.s u,hsT nasiricnge eth niieprds xngyeo toafrinc is nto epfhllu cxtpee for teh seca fo OC opsinoig,n eerwh ghhi eriidpsn oeyngx .,.g(e 0%10 xngeyo ta tabinem irtecbaorm ssreprue ro tplnecaem of hte tecusjb tnio a pheairrycb m)creahb oetesmpc hwit OC ibngdin ta hte ehem eits rle(cal H'delasan rfsti w)al." - hpoi.3ksl1/4mtn/:owst.c/5wnKbgohi./b.N/n1vBw

blueberriesyum  Also, in first aid respiratory chapter for anemia it says, Hb conc is low, %O2 sat is normal, dissolved oxygen (PaO2) is normal, but total O2 content is low. Total oxygen content is the sum of oxygen bound to Hb and dissolved oxygen. (FA 2018 pg 649) +1  

submitted by βˆ—an_improved_me(75),
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s,oAl to aemitieln the ertoh itopsno:

iyHlntlopinvtoea uodlw vhea an dniecsrea CpO2 nad drceeesda O2.p

ihHg ludaitet wolud heav low P,2O low OpC2 al(eivyitnnelor)tpH

QV/ thmiscma dluow also vhae a olw 2Op nda gihh p2C,O senci ssega rae xa.hgnignec

eypnoartietnHivll wodul evah a nmloar OP2 and low PC2O

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