On Dialysis :
Creatinine :
Total Bilirubin:
Sodium :

The Model for End-Stage Liver Disease (MELD) is a reliable measure of mortality risk in patients with end-stage liver disease. It is used as a disease severity index to help prioritize allocation of organs for transplant. The MELD Na adds the sodium to the calculation to better categorize patients with cirrhois with mortality.

Formula :

MELD − Na − [0.025 × MELD × (140 − Na)] + 140

Explanation of Result :

3 Month Mortality :

MELD score > 40 : 71.3% mortality
MELD score 30–39 : 52.6% mortality
MELD score 20–29 : 19.6% mortality
MELD score 10–19 : 6.0% mortality
MELD score < 9 : 1.9% mortality

* Please verify all calculations prior to clinical use.


  • Kamath PS1, Kim WR; Advanced Liver Disease Study Group. The model for end-stage liver disease (MELD). Hepatology. 2007 Mar;45(3):797-805. PMID: 17326206.
  • Wiesner R1, Edwards E, Freeman R, Harper A, Kim R, Kamath P, Kremers W, Lake J, Howard T, Merion RM, Wolfe RA, Krom R; United Network for Organ Sharing Liver Disease Severity Score Committee. Model for end-stage liver disease (MELD) and allocation of donor livers. Gastroenterology. 2003 Jan;124(1):91-6. PMID: 12512033.
  • Kim WR1, Biggins SW, Kremers WK, Wiesner RH, Kamath PS, Benson JT, Edwards E, Therneau TM. Hyponatremia and mortality among patients on the liver-transplant waiting list. N Engl J Med. 2008 Sep 4;359(10):1018-26. PMID: 18768945.