Which Equation Is Most Accurate

Multiple Choice

Which equation is most accurate?

A) Extracellular fluid volume + interstitial fluid volume = whole body fluid volume
B) Intracellular fluid volume + interstitial fluid volume = extracellular fluid volume
C) Extracellular fluid volume - interstitial fluid volume = plasma volume
D) Plasma volume + intracellular fluid volume = extracellular fluid volume
E) Total body fluid volume - intracellular fluid volume = interstitial fluid volume