Which diagram represents the changes (after osmotic equilibrium) in extracellular and intracellular fluid volumes and osmolarities after the infusion of 3% NaCl?
Correct Answer: C
Description: A 3% solution of NaCl is hypeonic, and when infused into the extracellular fluid, it would raise osmolarity, thereby causing water to flow out of the cells into the extracellular fluid until osmotic equilibrium is achieved. In the steady state, extracellular fluid volume would increase, intracellular fluid volume would decrease, and osmolarity of both compaments would increase.
Category:
Physiology
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