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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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Flow Rate = teylcVio x srlCineo-osacSt aerA

2 m^2c x 02 /cmecs x 60 sim/enc x 1 00,L/01 c3^m = 2.4 inmL/

,0100 mc^3 = 1 L

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seagull  ellW, I sdmesi ihts neo. I otn'd enev eefl .adb +78
link981  yycepk@anom a malls otyp, 010 ^mc3 = 1 L otn cm00013.^ 010 0 L=3^m 1 L +1
hello  acyeyopkmn@ owh ddi uoy teid oruy iigolran moctmne to ixf uoyr ptyo? +1
winelover777  ePrytt uers pe@cmoayynk was .erocrtc 1 L = 1000 .3cm^ iwerhOtse eht sawren dluwo be 24. +4
drdoom  1 nreitmetec is a tsia.endc (A e.l)ni +1
drdoom  fI ew mullyitp a ilne yb hernaot lnie, ew gte a eafsrcu .area (A iepce of r.p)aep +1
drdoom  fI ew iltylmpu the ceipe fo eaprp yb rntheao nl,ei we etg lvo.emu (A .bceu A .xb)o +1
drdoom  fI ew ilfl het xbo ithw a ,ilfdu ew liwl evha 1 mL fo iths i.dufl +1
drdoom  fI ew aevh a naudtsoh of ehest exb,os we aevh 1 L fo dluf.i +1
drdoom  ,o1oo Lm = 1 teLir = oo,o1 rt³tciemene +1

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

+5/- ribosome01(-3)


 +6  upvote downvote
submitted by ∗nwinkelmann(366)
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v'eI nvree bnee odog ta vgercnoint suint (: oll so adh ot ask my .ebtrohr He oltd em :atth

secatind × aciedtsn = ectnsaid2 = aaer

a,nd

enistcad × isecntda × nsdceati = naietdcs2 × adisncet = tnidaesc3 = oveuml

taotG elov icblup lshoco rfo eenvr eben gthtua hatt ... eghse lsvioy(obu e'Iv endo eth qnuoseita nad ,fufst sjtu revne eebn dotl ti ahtt whaatyt/ ilmpes ber.foe) nwoginK ttah skaem igigrfun uto teh oqaiuten cumh eirs:ae

Fwol tera = voeliyct × SCA = 20 cmsec/ × m2c2 = 40mc3/sce

oT otevcnr ot ,Lnim/ stju :lpmlutiy

40mc3cse/ × 60 e/nsicm × L100m/c1,03 = 0204 0L1/,00 mni = 42. in/Lm

poeH hsti !elpehd

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impostersyndromel1000  to all ym public ooshlc pseep uot ehert adn( not eht niec upclib scolsho ni ihcr s,eara hte ealr ibcpul olssc)o..h. ew mead i!t +4
angelaq11  aTnyllkufh I saw taugth woh to renvotc u,tins utb etl em llet yuo that I was SO otls no tshi neo. tsI' USEESLS to kwno owh ot do it fi you ,(I I nmae )I td'no ownk eth nmad flamour .xD sbuivOoly tgo tish eno n,wgro utb 'tsi ogod to wonk htta if it eerv eocsm up aaing d(an I nkwo it )t'nwo I yaledra wonk t.i +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)


 +2  upvote downvote
submitted by seracen(15)
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Ug,h sry,ro igettng udse ot the rnttmfogia, adn tcelilaanydc tsodep ti in teh ornwg a.celp

ans,wyyA ot tret,earei I ywsala jstu ookl at eht nu.its tI tanws L/inm, 'Im gniev m^c2 nda c/mesc

oS I plyl,mitu to egt uelmov uot of it ,^)c3m( tnhe ertnovc sdsneoc ot unisme.t

shT,u i'ts lyialcsba 2xx62, in smeo eshap or mrfo eatfr pnclgia het caledmis ppoypraaerlit. doGo inght teyh dntdi' add htta tpuicralar lkrwn,ie Ill' take ym ieeldamr mtah slklis dan gbu t,ou a..hh.a

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 +1  upvote downvote
submitted by googaga(2)
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signteT etnsgit 12.3 hsTi is a stet opts ot ese if sthnig nu smrca elb yb tpginy a nmeco.mt skT.hna

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drdoom  i pesrcet tish ptemtta btu i d'tno tnkhi it owsrk hatt way +2



 +0  upvote downvote
submitted by ∗usmleboy(19)
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hiTs soitunqe saw no my CATM and I guelhda nwhe I swa it.

nishTg you vega ot no:wk ^m3c = mL , nteh woh to ontvrec nts.iu

c2^m2 x 20 cces/m = 43^0mc / sec = 04 mL / ecs

omFr heer tusj oentcrv 04 Lm / sec ot L / inm

04 mL / esc x 1 L / 0001 Lm x 60 sce / 1 uinetm = 4.2 L / mni

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 -1  upvote downvote
submitted by ∗kernicterusthefrog(139)
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sJut in caes atht olvyel titell unqaoeti vodedrpi by pk@omyneyca astwn' etqiu neohgu fro uy,o r'sehe a ilnk ot a erom elcoeptm oetxlpaanin yb Kahn ceaAmy.d pedHle em, ehwn I edoklo ta eht uneiotaq dan sadi, awa?aha

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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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