TYK118

In the full-term neonate

a) Total body water constitutes 65% of body weight

b) Intracellular fluid constitutes a greater proportion of total body water than extracellular fluid

c) Extracellular fluid represents 45% of body weight

d) Intracellular fluid represents 70% of body weight

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Answer

Answer c.

In a term neonate, total body water accounts for 80% of body weight. Extracellular fluid constitutes 45% of body weight. Intracellular fluid constitutes 35% of body weight. At all ages, the extracellular component constitutes a greater proportion of total body water than intracellular fluid. These relationships are important it terms of their effects on drug volume of distribution

Notes

This question originally printed in the Pediatric Anesthesiology Review Topics kindle book series, and appears courtesy of Naerthwyn Press, LLC.

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