Question
Aldosterone increases sodium reabsorption which causes ____ in blood osmolarity.
Answer
Aldosterone increases sodium reabsorption which causes NO CHANGE in blood osmolarity.
This forces more fluid into the blood and raises BP.
Aldosterone increases salt reabsorption but also increases volume because with every sodium that is absorbed a water molecule follows. Therefore, it doesn't affect osmolarity but it does increase total amount of salt in the blood.
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