🫀 MELD-Na Score Calculator
UsePrognosis and liver-transplant prioritisation.
StrataHigher MELD/MELD-Na indicates higher 90-day mortality and higher transplant priority; interpret bands with lo…
LimitsNot validated for all acute liver-failure etiologies in the same way … · Creatinine is capped and dialysis overrides — confirm units and dialy… · Does not replace clinical judgement for ICU triage or transplant eval…
SourceKim WR, et al. N Engl J Med 2008; UNOS MELD-Na 2016
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
Higher score = higher 90-day mortality and transplant priority.
When to use
Prognosis and liver-transplant prioritisation.
How it works
MELD = 3.78·ln(bilirubin) + 11.2·ln(INR) + 9.57·ln(creatinine) + 6.43; labs floored at 1.0, creatinine capped at 4.0 (or with dialysis). MELD-Na adds a sodium term when MELD > 11.
Key points
- Higher score = higher 90-day mortality and transplant priority.
- Creatinine is set to 4.0 with dialysis ≥ 2×/week.
- Sodium is bounded to 125–137 in the formula.
References
- [Guideline / primary source]Kim WR, et al. N Engl J Med 2008; UNOS MELD-Na 2016
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Bilirubin | 2.0 mg/dL |
|---|---|
| INR | 1.5 |
| Creatinine | 1.2 mg/dL |
| Sodium | 135 mmol/L |
| Dialysis ≥ 2× in past week | No |
→MELD-Na17
- MELD (pre-Na)：15
- Higher score：= greater 90-day mortality / transplant priority
| Bilirubin | 2.0 mg/dL |
|---|---|
| INR | 1.5 |
| Creatinine | 1.2 mg/dL |
| Sodium | 135 mmol/L |
| Dialysis ≥ 2× in past week | Yes |
→MELD-Na28
- MELD (pre-Na)：27
- Higher score：= greater 90-day mortality / transplant priority
Verification & sources · governance
FAQ
Frequently asked questions
- Does MELD-Na Score Calculator upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is MELD-Na Score Calculator calculated in practice? Can you show a worked example?
- Inputs: Bilirubin 2.0 mg/dL, INR 1.5, Creatinine 1.2 mg/dL, Sodium 135 mmol/L, Dialysis ≥ 2× in past week No → Result: MELD-Na 17（MELD (pre-Na): 15, Higher score: = greater 90-day mortality / transplant priority） Inputs: Bilirubin 2.0 mg/dL, INR 1.5, Creatinine 1.2 mg/dL, Sodium 135 mmol/L, Dialysis ≥ 2× in past week Yes → Result: MELD-Na 28（MELD (pre-Na): 27, Higher score: = greater 90-day mortality / transplant priority）