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出生体重<1500克或虽>1500克,按常规不能顺利授乳者,应给以输液,维持输液量=不显性失水量+尿量+便量+成长需水量-内生水量。对于生后不久的低出生体重儿的维持输液量只考虑不显性失水+尿量即可。在此期间有生理性体重下降(主要是水分减少),不必按此等量补充,可输入更少一些的量。一、不显性失水量不显性失水量常因各种生理、医学、治疗上的因素而变动,其量与胎龄的周数和出生体重呈反比,低出生体重
Birth weight <1500 grams or even> 1500 grams, according to the conventional can not be successfully lactation, should be given infusion, maintenance of infusion volume = no significant loss of water + urine output + volume + growth water demand - endogenous water. For the birth of low birth weight infants to maintain infusion only consider the insidious loss of water + urine output can be. Physiological weight loss during this period (mainly water reduction), do not have to add the same amount, you can enter a smaller amount. First, the insignificant water loss Insubstantial water loss often due to a variety of physiological, medical, therapeutic factors and changes in the amount and gestational age and birth weight is inversely proportional to the number of weeks, low birth weight