Does anyone know why it's ok to use IV hypertonic saline in SIADH?

Does anyone know why it's ok to use IV hypertonic saline in SIADH? Is that just for acute hyponatremia? Wouldn't that cause other problems (extracellular fluid shift from cells for instance)?
 

Barnes

Active member
I would think that the cells are already increased in size from the hyponatremia due to decreased extracellular concentration.

So using hypertonic saline would just correct the hyponatremia?
 
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