A patient experiences significant blood loss after surgery, which raises the osmolarity of the bloodstream. Which fluid changes are expected to occur within this patient's body as a result?
Extracellular fluid will shift into the interstitial fluid space and tissues will expand.
Interstitial fluid will shift into the intracellular fluid space and cells will stay the same.
Extracellular fluid will shift into the intracellular fluid space and cells will expand.
Intracellular fluid will shift into the extracellular fluid space and cells will shrink.
The Correct Answer is C
Osmolarity is a measure of the concentration of solutes in a solution. When the osmolarity of the bloodstream increases due to blood loss, water will move from areas of lower osmolarity to areas of higher osmolarity by osmosis. This means that water will move from the extracellular fluid (the fluid outside the cells) to the intracellular fluid (the fluid inside the cells) to balance the osmotic pressure. As a result, the extracellular fluid volume will decrease and the intracellular fluid volume will increase, causing the cells to expand.
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