Gastroenterology · Hepatology · Internal Medicine
MELD-Na calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 0.1–15 mg/dL
Allowed range: 0.1–50 mg/dL
Allowed range: 0.5–10
Allowed range: 100–160 mmol/L
Values <125 or >137 mmol/L are bounded in the OPTN formula
Result
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Clinical inputs
- Serum creatinine (mg/dL)Accepted range: 0.1 to 15
- Total bilirubin (mg/dL)Accepted range: 0.1 to 50
- INRAccepted range: 0.5 to 10
- Serum sodium (mmol/L)Accepted range: 100 to 160
Primary source
Kim WR et al. Hyponatremia and mortality among patients on the liver-transplant waiting list. N Engl J Med. 2008;359:1018-1026. DOI: 10.1056/NEJMoa0801209. PMID: 18768945. Allocation formula per OPTN Policy 9 (Jan 2016): sodium adjustment applies only when MELD(i) > 11; sodium bounded 125-137 mmol/L. (2008)
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