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TYK27: Difference between revisions
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Which of the following is true concerning pediatric patients? | Which of the following is true concerning pediatric patients? | ||
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D. Adult glomerular filtration rate (GFR) is achieved by 2 years of age | D. Adult glomerular filtration rate (GFR) is achieved by 2 years of age | ||
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==Answer== | ==Answer== | ||
The answer is D. TBW is highest in the newborn (78%). ECW DECREASES from 62% to 43% from the first trimester to term. Also, ICW increases from 25% to 32% during the same time. Because the ratio of surface area to volume is decreasing, the ECW and plasma volumes remain constant AS A FUNCTION OF SURFACE AREA, but not weight. Therefore, estimates of blood volume (EBV) by weight change with age. These estimates are highest in the premature infant (100ml/kg) decreasing to 90 ml/kg at term.<ref>Fluid and electrolyte therapy in newborns. Up to Date.[http://www.uptodate.com/contents/fluid-and-electrolyte-therapy-in-newborns]</ref>.==Notes== | |||
The answer is D. TBW is highest in the newborn (78%). ECW DECREASES from 62% to 43% from the first trimester to term. Also, ICW increases from 25% to 32% during the same time. Because the ratio of surface area to volume is decreasing, the ECW and plasma volumes remain constant AS A FUNCTION OF SURFACE AREA, but not weight. Therefore, estimates of blood volume (EBV) by weight change with age. These estimates are highest in the premature infant (100ml/kg) decreasing to 90 ml/kg at term.<ref>Fluid and electrolyte therapy in newborns. Up to Date.[http://www.uptodate.com/contents/fluid-and-electrolyte-therapy-in-newborns]</ref>. | |||
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==Keywords== | ==Keywords== | ||
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