4. What do sodium values determine in relation to the EXTRACELLULAR fluid compartment? In other words, why does knowing the sodium levels in the extracellular compartment matter? (You'll need to distinguish between what happens in the serum and what happens in the interstitial compartments).
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Osmolarity refers to the concentration of solutes in a solution, and sodium is the primary determinant of extracellular fluid osmolarity. Show more…
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