Hypotonic hyponatremia
Serum osm <280Low urine sodium <10 mEq/L - increased sodium retention by the kidneys to compensate for extrarenal losses of sodium containing fluid High urine sodium >20 – renal salt loss is likely
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Hypotonic hyponatremia
Serum osm <280Low urine sodium <10 mEq/L - increased sodium retention by the kidneys to compensate for extrarenal losses of sodium containing fluid High urine sodium >20 – renal salt loss is likely