Sodium Correction Rate in Hyponatremia and Hypernatremia
Calculates recommended IV fluid type, rate, and volume to correct hyponatremia or hypernatremia at desired rate depending on clinical scenario.
This tool is intended to assist with calculation, not to provide comprehensive or definitive management advice. Expert guidance is recommended to determine the rate of sodium correction, fluid type, and frequency of sodium monitoring.
Advice
- Identify the underlying etiology, especially in hyponatremia, since the safety and efficacy of fluid administration depend on the cause.
- Correct chronic hyponatremia carefully.
- Monitor serum sodium frequently, particularly during correction of severe hypo- or hypernatremia, to assess response to therapy.
- In hyperglycemic patients, calculate corrected sodium (see the Sodium Correction for Hyperglycemia tool) and use the corrected value to set treatment goals.
- Hypertonic solutions are typically reserved for patients with severe symptoms (e.g., seizures, significant neurologic deficits) and should be administered in an ICU setting under expert guidance.
Management
- Administer recommended IV fluid rate with frequent serum sodium monitoring and accurate recording of intake and output.
- Adjust the fluid rate based on the change in serum sodium.
- Expert guidance is highly recommended for severe hypo- and hypernatremia.
Critical Actions
- Determine an appropriate sodium correction rate based on the clinical scenario.
- Not all fluid types are appropriate for treating hypo- or hypernatremia.
- Correct chronic hyponatremia slowly.
- Rapid correction may be necessary for severe hyponatremia with mental status changes.
- Monitor serum sodium frequently and adjust therapy accordingly.
- Consider ICU monitoring for severe hyponatremia, particularly when using hypertonic fluids.
- This calculator does not account for fluid losses (e.g., urine, sweat, respiration) or intake from other sources (e.g., oral intake, other IV fluids).