MELD Score Liver Failure
Calculate MELD score for end-stage liver disease severity ranking
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About MELD Score Liver Failure
Calculate MELD Scores for Liver Failure Assessment
The Model for End-Stage Liver Disease score has transformed how we prioritise patients for liver transplantation and assess the severity of chronic liver disease. The MELD Score Liver Failure Tool calculates this critical score using three objective laboratory values, removing the subjectivity inherent in older classification systems. Since its adoption by transplant allocation systems worldwide, MELD has saved countless lives by ensuring the sickest patients receive organs first.
Originally developed to predict survival after transjugular intrahepatic portosystemic shunt (TIPS) procedures, MELD was quickly recognised as a powerful predictor of three-month mortality in patients with end-stage liver disease. It is now the standard scoring system used by organ allocation organisations in the United States, the United Kingdom, and many other countries.
How the MELD Score Is Calculated
Enter three laboratory values: serum creatinine (mg/dL), total bilirubin (mg/dL), and INR (International Normalised Ratio). The tool applies the standard MELD formula using natural logarithms of these values, multiplied by their respective coefficients, and rounds to the nearest whole number. Scores range from 6 (least sick) to 40 (gravely ill), with values below 1.0 for any parameter set to 1.0 per convention.
The calculator also computes MELD-Na (incorporating serum sodium, which improves predictive accuracy) if you provide a sodium value. MELD-Na has replaced standard MELD in the US allocation system since 2016, as hyponatraemia independently predicts mortality in cirrhosis.
Who Relies on MELD Scores?
Transplant hepatologists and surgeons use MELD daily to evaluate patients on the transplant waiting list. Intensive care physicians managing acute liver failure calculate MELD to assess prognosis and guide treatment intensity. Gastroenterologists monitoring chronic liver disease patients track MELD trends to identify deterioration early.
The MELD Score Liver Failure Tool also serves medical students and residents learning hepatology, providing instant calculations alongside explanations of what each score range means clinically.
Interpreting MELD Scores
A MELD score under 10 indicates relatively stable liver disease with over 90% three-month survival. Scores of 10-19 represent moderate disease. Scores of 20-29 indicate serious illness with increasing mortality risk. Scores of 30-39 reflect very severe disease where transplant is urgent. A score of 40 carries approximately 70% three-month mortality without transplantation.
Clinical Considerations
MELD is purely objective - all three parameters are laboratory-measured, eliminating the inter-observer variability that affects Child-Pugh scoring. However, certain conditions can artificially alter MELD: patients on warfarin have elevated INRs unrelated to liver function, and patients with intrinsic kidney disease may have elevated creatinine independent of hepatorenal syndrome. Always interpret MELD in clinical context. Recalculate the score whenever new labs are available, as MELD can change rapidly in acute decompensation. The tool makes this recalculation effortless, helping you track your patient's trajectory accurately over time.