Our Hyperglycemia Corrected Sodium Calculator helps medical professionals and students accurately adjust serum sodium levels in the presence of high blood glucose. Understand the true sodium concentration, which is crucial for diagnosis and treatment of conditions like diabetes insipidus or hyponatremia. This tool accounts for the osmotic shift of water from cells into the extracellular fluid due to hyperglycemia, providing a more precise sodium value.
Formula:
The formula used to calculate corrected serum sodium in hyperglycemia is:
Corrected Na⁺ (mEq/L) = Measured Na⁺ (mEq/L) + 0.016 × (Measured Glucose (mg/dL) - 100)
- Measured Na⁺: The laboratory-measured serum sodium concentration in mEq/L.
- Measured Glucose: The laboratory-measured blood glucose concentration in mg/dL.
- 100: Represents the normal average blood glucose level in mg/dL, serving as the baseline for correction.
- 0.016: The correction factor, indicating that for every 100 mg/dL increase in glucose above 100 mg/dL, serum sodium decreases by approximately 1.6 mEq/L.
Note: This formula is an approximation and should always be interpreted with clinical judgment and patient context.