MELD-Na Score Calculator

MELD-Na Score Calculator for Gastroenterology. Higher MELD-Na values generally indicate higher short-term mortality risk and can influence transplant prioritization under applicable allocation rules.

How this calculator works

MELD-Na incorporates serum sodium into MELD-based risk estimation to better account for hyponatremia-associated mortality in cirrhosis.

Inputs used

  • Bilirubin
  • INR
  • Creatinine
  • Sodium
  • Dialysis status when applicable

Clinical interpretation

Higher MELD-Na values generally indicate higher short-term mortality risk and can influence transplant prioritization under applicable allocation rules.

Limitations and safety notes

Always apply current transplant policy and local rules. Acute clinical changes, exceptions, and non-laboratory factors may alter management.

References

  • Kim WR, Biggins SW, Kremers WK, et al. Hyponatremia and mortality among patients on the liver-transplant waiting list. N Engl J Med. 2008.
  • UNOS/OPTN MELD-Na allocation policy resources.

Editorial review and citation methodology

Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: June 19, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.

  • Prefer original validation studies for scoring systems and prediction tools.
  • Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
  • Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.