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NBME 20 Answers

nbme20/Block 4/Question#43 (42.0 difficulty score)
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Negative nitrogen balanceπŸ”

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submitted by guillo12(44),
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gieNevta ergonint canlaeb si oesadaisct wtih sunr,b esiosur sseitu iireujs,n s,erfev dys,ihritmyopher staginw ,ssadesie adn undgir ridosep of tiasfg.n hTis esnma ttah the manotu fo nrtnogie eexrdtce rfmo teh doby is errgtae athn hte nauotm of onreintg gesei.dnt

vsoiitPe ninrotge ecnlbaa is assadcteio ihwt rpsoedi fo ,whrogt idtmsophyrhy,io ituses iea,prr dan rgenyacnp. sihT nasem that hte taenik of nertnigo otni eth yobd is aegtrre tanh hte ssol of ngetnoir rmof eht ybdo, os rethe si na ceianres ni eth attol ydbo olop fo itneopr.

guillo12  by Wiki +  

submitted by strugglebus(163),
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uYo veah enagetiv nNteirgo eanclba in aonaivtstr la(kc fo iepont)r nda oietisvp ngtroNie ni umcesl dnlbgiiu stseta i.e.( e)ettsaei/hchrldln

celeste  Nitrogen Balance = Nitrogen intake - Nitrogen loss +8  

submitted by andremosq(1),

Nitrogen is a fundamental component of amino acids, which are the molecular building blocks of protein. Therefore, measuring nitrogen inputs and losses can be used to study protein metabolism.[2]

Positive nitrogen balance is associated with periods of growth, hypothyroidism, tissue repair, and pregnancy. This means that the intake of nitrogen into the body is greater than the loss of nitrogen from the body, so there is an increase in the total body pool of protein.

Negative nitrogen balance is associated with burns, serious tissue injuries, fevers, hyperthyroidism, wasting diseases, and during periods of fasting. This means that the amount of nitrogen excreted from the body is greater than the amount of nitrogen ingested.

A negative nitrogen balance can be used as part of a clinical evaluation of malnutrition.