#82 Hyponatremia Diagnostics: 5 Pearls Segment
Core IM | Internal Medicine Podcast
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Serum Osmolality
Since sodium is our largest osma, expect hyponatrimic patients to have a significantly low serum osmolality. We check it once to verify that this is the case and then again if we think something new and funky is messing with your sodium. Remember that true hyponitremia can coexist with other extra osmoles. So normal serum osmal does not mean you don't also have a real hypo natremia going on.
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