The Hyponatremia Correction Calculator is an essential medical tool for healthcare professionals to accurately determine the sodium deficit, total body water (TBW), and the estimated change in serum sodium per liter of infusate. This supports safe and effective management of electrolyte imbalances, helping prevent both under-correction and over-correction of hyponatremia. Achieve precise fluid and electrolyte management with this reliable calculator.
Formula:
This calculator utilizes the following key formulas:
- Total Body Water (TBW):
Patient Weight (kg) × Distribution Factor - Sodium Deficit:
(Desired Serum Na - Current Serum Na) × TBW - Change in Serum Na per 1L Infusate (Adrogue-Madias Formula):
(Infusate Na - Current Serum Na) / (TBW + 1)
Variable Explanation:
- Current Serum Na: Current serum sodium level of the patient (mEq/L).
- Desired Serum Na: Target serum sodium level for correction (mEq/L).
- Patient Weight: Patient's body weight in kilograms (kg).
- Distribution Factor: Factor based on patient's sex and age for estimating TBW (e.g., Adult Male 0.6, Adult Female 0.5, Elderly 0.5, Elderly Female 0.45).
- Infusate Na: Sodium concentration of the intravenous fluid being administered (mEq/L).