Nephrology · ICU and Critical Care
Sodium Correction Rate calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 100–180 mmol/L
Allowed range: 100–180 mmol/L
Allowed range: 1–168 hours
Result
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Clinical inputs
- Starting sodium (mmol/L)Accepted range: 100 to 180
- Current sodium (mmol/L)Accepted range: 100 to 180
- Time between the two sodium values (hours)Accepted range: 1 to 168
Primary source
Average rate = (current Na − starting Na) / hours × 24, in mmol/L per 24 h. Hyponatremia: serum sodium should generally be corrected at a rate that does not exceed 8 mEq/L per day (MSD Manual Professional hyponatremia correction calculator, citing Adrogué HJ, Madias NE. Hyponatremia. N Engl J Med. 2000;342(21):1581-1589, PMID 10824078). Hypernatremia: do not lower sodium by more than 10–12 mEq/L per 24 h (WikEM, citing Adrogué HJ, Madias NE. Hypernatremia. N Engl J Med. 2000;342(20):1493-1499, PMID 10816188); the lower bound of 10 is used here. (2000)
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