So, I am trying to wrap my head around why we would use 1/2 NS in hypernatremia patients.
Here's what I have worked out so far...
1/2 NS is a hypotonic solution which would cause cells in the blood to swell with water.
The only thing that I could think of would be that this would change osmolarity in the blood thus pulling in water from the interstitial fluid to replace blood volume, which would then dilute the serum sodium level. Am I on the right track?
I've googled and can't seem to find an answer on the cellular level, just that we do use 1/2 NS to correct hypernatremia.
Thanks in advance.