FENa Calculator

Fractional excretion of sodium for AKI workup. For educational use only. Not for diagnosis or treatment. Consult qualified clinicians.

Enter your values in the input panel on the left. Results update instantly and you can share your scenario with the copy-link button.

Worked examples use typical teaching values — not patient-specific recommendations.

Clinical scores depend on complete data and context. Never omit comorbidities or medications when interpreting risk.

For educational use only. Not for diagnosis or treatment. Consult qualified clinicians. Scores and indices require clinical context. Do not use for diagnosis or treatment decisions.