Live calculator
Corrected sodium calculator
Calculate corrected serum sodium for hyperglycemic dogs and cats. Accounts for dilutional hyponatremia caused by elevated glucose.
Safety checks
- Corrected sodium is an estimate — not a substitute for repeat testing.
- Severe hyperglycemia (>600 mg/dL) can cause significant pseudohyponatremia.
- Always correlate with clinical signs and hydration status.
- This tool supports calculation and education only.
- It does not diagnose, prescribe, or replace clinical references.
Basis and limits
- Dog sodium reference: 140–152 mEq/L.
- Cat sodium reference: 145–158 mEq/L.
- Formula: Corrected Na = Measured Na + 0.016 × (Glucose − 100), with glucose in mg/dL.
- Scope: Estimates true sodium in hyperglycemia. Does not diagnose.
Formula
Corrected Na (mg/dL glucose): Measured Na + 0.016 × (Glucose − 100)
Corrected Na (mmol/L glucose): Measured Na + 1.6 × (Glucose − 5.6) ÷ 100