Plasma is Closest in Composition To

Question

Plasma is closest in composition to
A) urine.
B) isotonic saline solution.
C) sterile water.
D) CSF.
E) interstitial fluid.

Accepted Answer

Plasma is closest in composition to interstitial fluid, as both are components of the extracellular fluid and have similar concentrations of ions and solutes, except for proteins which are higher in plasma.