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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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Fowl aetR = Viyceolt x cseCtiolnrsa-So aAer

2 mc2^ x 20 csc/em x 06 ncims/e x 1 10,0/L0 m3c^ = 2.4 n/Lim

,1000 m3^c = 1 L

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seagull  Wll,e I diessm this en.o I otd'n vene lefe .bda +78
link981  pycnaym@eok a salml pt,oy 010 c^m3 = 1 L tno 00.c03^1m 1 000 Lm3=^ 1 L +1
hello  eacko@nmpyy hwo ddi you dite oryu aglroiin onemmtc to ixf royu tpo?y +1
winelover777  retPty ures pcoyeanmk@y asw cr.ertoc 1 L = 0010 3^.cm shewetiOr het anewsr wuodl eb 24. +4
drdoom  1 trncimeete is a dsiacnte. A( ln.i)e +1
drdoom  fI we mllytpiu a lnie yb tnhraeo nie,l we etg a usacref aar.e (A eepci fo .pe)pra +1
drdoom  fI ew pumlitly teh ceiep of perap by treonha en,il ew etg vmu.leo (A .cbeu A )obx. +1
drdoom  If we ilfl the xob hwit a ,fdliu ew llwi evha 1 Lm of hits u.lidf +1
drdoom  fI we heva a auonhstd fo etshe es,oxb ew aehv 1 L fo ulf.id +1
drdoom  o1,oo mL = 1 Lteir = o,o1o ttmer³enice +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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eIv' evern eben ogod ta oinvctnrge istun :( lol os hda to ask my obh.rter eH ldot me :ahtt

cnasetid × icdtsane = tciendsa2 = eaar

a,nd

tsaniced × detinsca × disantec = tinescda2 × asctedni = sdctniae3 = umlove

oaGtt lveo lbuipc soohlc ofr reven eenb aghtut ahtt ... hsege olouv(bysi Ie'v dnoe hte nqiuoaets dan ff,sut tsuj vnere eneb otdl it hatt tayht/wa iepsml ebe.fro) wogKnin atth kmsea nrgfuigi out eth ntiquoea hmcu sa:reei

oFlw raet = olityecv × CAS = 02 /mcsce × 2cm2 = 0cm43cse/

oT nevotrc ot /Lm,in utsj yulpm:ilt

4cm03c/se × 06 em/cins × 1/0001m,cL3 = 2004 L010,/0 nim = .24 Lnim/

poHe ihts pehl!ed

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impostersyndromel1000  ot all ym bcupli oloshc epspe uto rehet a(nd ton eht ncei pblicu soohslc ni rchi ras,ae het earl icpubl hol).so..cs we edam !ti +4
angelaq11  hnklufyaTl I saw uagtth hwo ot etvronc ut,ins btu tel em etll you hatt I aws SO slto on htsi e.no s'It UEESLSS ot wokn hwo ot do it fi ouy I(, I mena I) nd'to owkn the dnam oumlraf Dx. uOsivbylo tgo sith eno worgn, tbu 'sti ogdo ot oknw taht fi it vree oemsc pu ianga (and I ownk ti ow')nt I reaadyl wokn 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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hgU, sro,ry tggetni eusd to het ro,tgtmifan nad lnaaiccldtye dptose it ni hte gorwn el.apc

yn,Ayaws to ita,treere I yslwaa just lkoo ta eth nt.uis It nswta ,m/iLn m'I geinv ^c2m nad s/mcec

oS I llpyu,tim ot get ulovem tuo of it cm^3(,) tehn rtvnoec nossced ot ui.esmnt

,uhTs 'sti sbycaalli 2,x62x in oems ahpse ro mrfo retaf niclagp eth acemdsli pep.parratiloy dGoo ghtin ehyt 'tddin dda ttha crariapult likrnew, l'Il eakt ym dalreeim hamt lilkss nda ubg u,to ah...ah

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 +1  upvote downvote
submitted by googaga(2)
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sigTtne nettisg 2.13 iThs si a test tsop to see if tsgihn un marsc elb yb iypntg a emtnmc.o h.knasT

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drdoom  i eecrtps ihst apttetm btu i ont'd hiktn it rwsok atth ayw +2


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 +0  upvote downvote
submitted by ∗usmleboy(19)
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ishT eisunqto was on my MACT adn I ahdelug nweh I wsa i.t

iThgsn ouy egva ot :kwno 3c^m = Lm , then who to tnecvro t.usin

2cm2^ x 20 /ecmsc = c034m^ / esc = 04 Lm / esc

From hree sujt ocetrnv 40 Lm / ecs ot L / nim

40 Lm / esc x 1 L / 0100 Lm x 06 cse / 1 nmueti = 2.4 L / nmi

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 -1  upvote downvote
submitted by ∗kernicterusthefrog(139)
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ustJ in ecas ahtt lleyvo tellti ouneqtia oreipvdd yb nm@coeyaypk sw'ant iuqet hgeuno fro ,you r'ehse a nilk ot a moer lctmoeep elnonixpaat by nKah dymA.ace lepeHd ,em henw I okdelo ta the unoqaiet adn isa,d ha?aaaw

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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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