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Retired NBME 20 Answers

nbme20/Block 4/Question#16 (reveal difficulty score)
An investigator wishes to determine the ...
Ductal ion reabsorption is more efficient at low flow rates ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: GI

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 +9  upvote downvote
submitted by โˆ—masonkingcobra(408)
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oohtspeuo-oi-w-tl/milsomgss/to-wpa.ka-phttyhztplaenqy/w:ptme/-vpwidocleaosgy-aoahof-n-/hrtri-oszoaatc--aadrmiai

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utap2001  eNci, a ilblratni e!pcuirt +



 +9  upvote downvote
submitted by โˆ—sinforslide(63)
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wvevreOi of Salvia puircnoot:d

  1. aAcnri eclsl trceese atiinil as,lavi hwhic is tisonico ot lsma.pa
  2. altucD celsl ydfiom tiinali ilaavs, gcinuas aeitobrropns of a+,N l-C dna ceronseti of K+ adn OC-.H -g ;t& ihgreh K+ nad HOC- crancst,etionno woerl +Na Cl- tinsatccnoorne in lviaas. In itsh p,ssorce OMRE aNCl is ,sbeeabrodr mngiena taht aialsv dnes up negbi icyhpootn ot las.pma

uclatD oontrabripes cesrpos is dedhenir in flwoihgh- ssetat, ihwhc cuseas onitosic vailas

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https://www.researchgate.net/figure/Relation-between-the-concentrations-mEq-l-of-sodium-potassium-chloride-and_fig3_46598804

if you look a the figure HCO3- stays relatively constant from flow rate of 1-4

+2/- j44n(141)


 +3  upvote downvote
submitted by โˆ—usmleuser007(464)
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arlySiva nictersoe .1 tA lwo flwo = Hhgi rcannnctoieot of tpiumaos;s lwo rnottonsnceaic fo imoud,s acbi,br pam&; drl oi2h.ec ta hgih lfow = low naiocnenocrtt of soumap;tis hihg isrntoncateonc fo ,ousdim arib,cb map;& hdcrlioe

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sherry  'staTh xclatye tawh I wsa thgnnkii wneh I saw gnitak het .ttes uBt I wsa ctaddkierse yb smae CHO3 .elvel naC omsedyob lnexpai sthi ptar ot ?e?m +
charcot_bouchard  eucsBea alaryvis cdtu vemrsoe Na &apm; Cl heiwl eercest K pam&; ocH3 ni lu.men In wol fowl tear CO3H am&p; K cin sebauec udct is noigd tsi ntihg rfo moer .meti tA ihhg lofw reat K litslhgy cde as( ctna be eectsrd as mch)u btu CO3H sysat oltmas sme.a the rsnoae is gihh owfl aedscitin gierhh lotbmmiaes ;ma&p ighreh raicbb driopctuno. +
cienfuegos  dnarRgige teh rcaibb (iva SBR oilgyhy,Pos hhicw xesainpl lfwo eatr as ocnmgi wdno ot cattn"oc emit" ehrew lows wofl olwlsa moer rtaripbensoo fo )laNC: heT oynl oin thta dsoe ton iโ€œโ€tf tish cacottn mtei xaieaonntlp is ;COโˆ’H3 HCโˆ’O3 soeitncer si iyvcelelste siaeudtltm nwhe avsali senceirot is maueltdt.si +3



 +2  upvote downvote
submitted by โˆ—chandlerbas(118)
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Pt 1 esat(k rcctii cia)d

tP 2 (sketa )dynca

tP 1 x2( ilavas = ghih flwo ,eart 2xClaN [teeirlnrva - o]nei)gr

Pt 2 x1( liavsa = low wlof ,trae CaxNL1 oregin[ otn p])mi

P1t = citric cdia it*ms cladut elcl ot creseet ltnauraecillr dlatuc sorgeta fo iracb.b aibcbr zelieanstru icitrc aid.c huts owl .rcbiba

tP2 = low oflw ,etra usht ermo baribc sbeaebdror otu fo cu.dt uhts olw ibrbca

why do hety heva het asme i,abrcb bsaueec olw ofwl ae.rt

iav* cAh iglnsa iornductsnta to icseraen allaecltrurin latcud mcuailc eelsrea -;g-&t C3OH seodtr iiesnd caldtu llce

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 +1  upvote downvote
submitted by โˆ—stepwarrior(29)
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all inef nda adnyd xtpcee trbeaobanci sn'ti nstaotnc wtih lowf etar

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 +0  upvote downvote
submitted by usmledelirium(0)
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I iknht nreeoeyv is noigcufs on baBric whne yuo nac jsut ormaecp wflo etra dan C.NLa

hiHg fwol trea = x2 clNa ; emsa acowbLirb olfw tare = x1 c;Nla meas crbiab

siht soswh tath henw olwf si wo,ls oyu rae albe to raobsrbe mo.er

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