Nephrology
Hyponatremia Correction Rate (Adrogué-Madias)
Calculates the expected change in serum sodium per liter of IV fluid.
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Parameters
Hyponatremia Correction Rate (Adrogué-Madias) Result
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Formula
Change in Na = (Infusate Na - Serum Na) / (TBW + 1)Clinical Pearls
Crucial for calculating the infusion rate of 3% Hypertonic Saline in severely symptomatic hyponatremic patients (e.g., seizing).
Limitations
Does not account for ongoing sensible and insensible fluid/sodium losses or the effect of concurrent diuretic therapy. Frequent laboratory monitoring is mandatory.