Which scoring system is used to determine the severity of liver disease and the need for transplant?

Which scoring system is used to determine the severity of liver disease and the need for transplant?

• A. Child-Pugh score
• B. APACHE II score
• C. Model for End-Stage Liver Disease (MELD)
• D. King's College criteria

Answer: (C)

The key concept is using an objective, lab-based score to quantify how severe liver disease is and how urgent a transplant might be. The MELD score does exactly that. It was developed to predict 3-month mortality in patients with advanced liver disease and to guide transplant prioritization. It uses routinely measured labs—bilirubin, the international normalized ratio (INR), and creatinine (with sodium sometimes added in the MELD-Na variation). Higher scores indicate a higher risk of death without transplant, so they move higher on the transplant waitlist. Other scoring systems serve different purposes. The Child-Pugh score combines labs with clinical findings like ascites and hepatic encephalopathy but relies more on subjective assessment and is less precise for listing than MELD. The APACHE II score measures general illness severity in critically ill patients, not specifically liver disease. The King’s College criteria are used to predict prognosis and transplant need in acute liver failure, not the ongoing severity of chronic liver disease for transplant allocation. Therefore, MELD is the most appropriate choice for determining both severity and transplant priority.

The key concept is using an objective, lab-based score to quantify how severe liver disease is and how urgent a transplant might be. The MELD score does exactly that. It was developed to predict 3-month mortality in patients with advanced liver disease and to guide transplant prioritization. It uses routinely measured labs—bilirubin, the international normalized ratio (INR), and creatinine (with sodium sometimes added in the MELD-Na variation). Higher scores indicate a higher risk of death without transplant, so they move higher on the transplant waitlist.

Other scoring systems serve different purposes. The Child-Pugh score combines labs with clinical findings like ascites and hepatic encephalopathy but relies more on subjective assessment and is less precise for listing than MELD. The APACHE II score measures general illness severity in critically ill patients, not specifically liver disease. The King’s College criteria are used to predict prognosis and transplant need in acute liver failure, not the ongoing severity of chronic liver disease for transplant allocation. Therefore, MELD is the most appropriate choice for determining both severity and transplant priority.