Side-by-side comparison helps you choose the right calculator for a specific clinical question.
Nephrology
Calculate the free water deficit for hypernatremia correction. Estimates how much free water is needed to normalize serum sodium.
Formula
Free Water Deficit (L) = TBW × ((Current Na / 140) − 1). TBW = Weight × 0.6 (male) or 0.5 (female).
Inputs
Clinical
Calculate corrected sodium level for hyperglycemia using the Katz formula. Essential for evaluating true sodium status in patients with elevated glucose.
Formula
Corrected Na = Measured Na + 1.6 × ((Glucose − 100) / 100)
Inputs