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Retired NBME 22 Answers

nbme22/Block 1/Question#9 (reveal difficulty score)
A 54-year-old man has an aneurysm in the ...
2.4 🔍 / 📺 / 🌳 / 📖
tags: calculation

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 +17  upvote downvote
submitted by ∗keycompany(351)
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woFl aRte = lteVoicy x enta-scliorSoCs eAar

2 c^m2 x 02 /cscme x 06 ecinsm/ x 1 ,1/00L0 c^m3 = 42. in/mL

010,0 m^c3 = 1 L

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seagull  Wlle, I ismdes hsti e.on I 'ntdo eevn eefl .dba +78
link981  yn@ycomapek a amsll pto,y 001 ^mc3 = 1 L ont c031.00^m 0001 =^3Lm 1 L +1
hello  cykyanomp@e how ddi uoy etid uryo oianligr cmtonem ot ixf oyur top?y +1
winelover777  etPtyr ruse nkycmeoya@p was eo.rcrct 1 L = 0010 3.^mc tiOewhrse het nearsw duolw be .24 +4
drdoom  1 terteincme is a icetn.sda A( .nlie) +1
drdoom  fI ew pytlmuil a einl yb othaenr l,ine ew teg a csrefua eraa. (A peiec of ).paerp +1
drdoom  If ew ytllmpiu hte piece fo pepar yb hoatenr eni,l we get .luvmeo (A cbeu. A b.xo) +1
drdoom  If we ilfl hte xob htwi a idf,ul we ilwl ahve 1 mL of tihs f.luid +1
drdoom  fI we ehva a ountadhs fo ethse exsob, we eahv 1 L fo lfui.d +1
drdoom  oo1,o mL = 1 Leitr = ooo,1 ³eeecnitrtm +1

if one still doesn't understand to add on .. 1000 cm^3 = 1000 ml 1000ml = 1 Litre

+5/- ribosome01(-3)

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 +6  upvote downvote
submitted by ∗nwinkelmann(366)
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'veI nreve eben godo at ncietvorgn stnui (: llo so hda to aks my hetorr.b He oldt em t:tah

scedtina × danistec = cdnaties2 = eara

,nda

cadsinet × tcsdnaie × tadcnesi = ieantdsc2 × satcnedi = ecsdntai3 = emlovu

ottaG eolv bicplu oclosh for verne neeb tuahgt thta ... gehes (loysbuoiv vI'e edon the eoqtiansu adn u,stff jtsu nreev eneb odtl it atth htaa/wyt pmslei ebr).feo onginwK htta esmka gnrugiif uot het qeaitonu mhcu e:risae

lwoF ater = vtyecoli × SAC = 20 msec/c × c2m2 = mc043ecs/

To croenvt ot miL,/n jtsu :lpytiulm

c40m3e/sc × 60 /nseicm × ,01mL0/c103 = 2040 L,0010/ nmi = 42. mi/Ln

Hoep ihst le!dhpe

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impostersyndromel1000  ot all ym uclibp hlosoc seepp tou eehrt (and ton eth icne lucpbi socslho ni hicr s,reaa het lrea ipucbl ..ol.)sscho we dmea ti! +4
angelaq11  flykaulhTn I saw ghuatt hwo ot ctrvnoe ,isntu btu let me tell oyu ahtt I was OS tlso on thsi no.e st'I LUEESSS ot know who ot od it fi ouy I(, I amen )I dnt'o wokn eth namd ulomarf Dx. sblOiyuov tog this eon now,rg tub t'si oodg ot konw thta fi it eerv omces up gaina (dan I okwn ti ont'w) I ldaraye wkon i.t +2

This is all you need for conversions:

1cm3 = 1 ml ... thus 40 cm3 = 40 ml

So to make it faster I would do it like this

40 ml/sec * 60 sec/1min * 1L/1000ml = 2.4 L/min

+3/- majoav1(2)

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 +2  upvote downvote
submitted by seracen(15)
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hUg, syo,rr ggtnite udes ot the fioatngmr,t dna ccldtyenaial todspe ti ni het grwno pc.eal

,yAswyna to aerirtt,ee I wlyaas stju okol at teh iu.tns It natsw ,nim/L 'Im gveni 2c^m nda es/cmc

oS I pulilym,t to teg vlmoeu tuo fo it cm(3,)^ tnhe oervntc esoncds ot emnti.su

hTsu, ti's laiasycbl 6x22x, ni osme hepas or fomr aefrt lnacipg hte eidmscla rppiealoyaprt. odoG gnthi tyeh ddtni' dda tath auirtcpral kwirl,ne Il'l ktae ym ildermae tmha klissl nad bug out, .haa..h

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 +1  upvote downvote
submitted by googaga(2)
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ntiTegs tiegnts 213. hisT is a test tpos to see if gnihst nu ascmr bel yb tpiygn a moenmc.t snkahT.

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drdoom  i tpreecs tshi etttpma btu i 'ntod ihnkt it kwsor hatt awy +2


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 +0  upvote downvote
submitted by ∗usmleboy(19)
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iThs oiqusent aws no ym MTCA dna I uedaghl whne I swa it.

ghisTn uyo gvea ot k:own m^c3 = mL , hnte hwo to oectvrn nu.sit

^m2c2 x 20 csmce/ = ^c04m3 / sec = 40 mL / esc

omFr rehe sjut rnvteoc 40 Lm / sce ot L / imn

04 mL / esc x 1 L / 0001 Lm x 60 cse / 1 mntiue = 2.4 L / min

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 -1  upvote downvote
submitted by ∗kernicterusthefrog(139)
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Jstu ni aces taht ellvyo elitlt qiatoneu pveddrio by ecyaymkp@no nswta' utiqe ohgeun fro ouy, rsee'h a nkil ot a rome plecetom anoeplnatxi by hKan Acmedya. dlHeep me, wneh I ookdel at teh eaoitnqu and sadi, ?aahawa

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If, like me, you dislike memorizing formulas, but are okay doing the actual math, I always just look at the units. It wanted L/min, and I had to get it using cm^2 and cm/sec...

Well, I know cm^3 gives volume (L) after bashing out a few conversions, so multiply it is!

Then I know to turn seconds into minutes, so multiply by 60.

Now, at this point, I knew my decimals were off, but still, 4x6 = 24, so it's some version of that. Had they included 24 or .24 as answers, I'd have actually had to pay attention to my conversions.

Anyways, I hope that helps!

+4/- seracen(15)

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