MELD Score Calculator
This calculator helps healthcare professionals determine the severity of chronic liver disease by calculating the Model for End-Stage Liver Disease (MELD) score. It is an essential tool for prioritizing patients for liver transplantation.
MELD Score Calculator
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Data Source and Methodology
All calculations are based strictly on the formulas and data provided by the United Network for Organ Sharing (UNOS). Learn more about UNOS.
The Formula Explained
The MELD score is calculated using the following formula:
Glossary of Terms
- Serum Bilirubin: A measure of liver function, indicating the amount of bilirubin in the blood.
- INR: International Normalized Ratio, a measure of blood clotting.
- Serum Creatinine: A measure of kidney function, indicating the amount of creatinine in the blood.
How It Works: A Step-by-Step Example
Suppose a patient has the following values: Serum Bilirubin = 1.2 mg/dL, INR = 1.1, Serum Creatinine = 1.0 mg/dL. The MELD score would be calculated as follows:
\[ \text{MELD} = 3.78 \times \ln(1.2) + 11.2 \times \ln(1.1) + 9.57 \times \ln(1.0) + 6.43 = 10.22 \]
Frequently Asked Questions (FAQ)
What is the MELD score used for?
The MELD score is used to assess the severity of chronic liver disease and prioritize patients for liver transplantation.
How often should the MELD score be recalculated?
It depends on the patient's condition, but typically it is recalculated every few weeks or months, as determined by the healthcare provider.
What is considered a high MELD score?
A MELD score above 15 indicates advanced liver disease, and a score above 30 is considered very high.
Can the MELD score predict mortality?
Yes, a higher MELD score indicates a higher risk of mortality in patients with liver disease.
Is the MELD score used worldwide?
Yes, it is widely used in many countries to evaluate liver disease severity and allocate organs for transplantation.