What is the Child-Turcotte-Pugh score?

The CTP score is a validated clinical scoring system for grading the severity of liver cirrhosis. It uses five parameters — bilirubin, albumin, INR, ascites, and hepatic encephalopathy — to assign a class A, B, or C that correlates with prognosis and surgical risk.

How does CTP differ from MELD?

MELD (Model for End-Stage Liver Disease) uses bilirubin, creatinine, and INR in a continuous logarithmic formula and is now the primary organ-allocation score in the US. CTP remains widely used for surgical risk stratification and is simpler to calculate at the bedside.

What does class A, B, or C mean?

Class A (5–6 points) indicates well-compensated cirrhosis with relatively preserved liver function. Class B (7–9 points) represents significant compromise. Class C (10–15 points) indicates decompensated cirrhosis and the worst prognosis.

Is this calculator a substitute for medical advice?

No. This tool is for educational and clinical-support purposes only. All decisions regarding patient care should be made by a qualified healthcare provider in the context of the complete clinical picture.

What INR value should I enter?

Enter the prothrombin time result expressed as the International Normalized Ratio (INR). If your lab reports PT in seconds, convert using your lab's reference INR values or use the formula: INR = PT_patient / PT_normal raised to the ISI power.

Child-Turcotte-Pugh Score Calculator — Cirrhosis Severity (CTP)

Summary

Calculate the Child-Turcotte-Pugh (CTP) score to classify cirrhosis severity into class A, B, or C based on five clinical parameters.

How it works

Each of five parameters — bilirubin, albumin, INR, ascites, and encephalopathy — is scored 1, 2, or 3 based on laboratory or clinical values.
The five individual scores are summed to give a total between 5 and 15.
The total maps to a class: A (5–6), B (7–9), or C (10–15), reflecting increasing severity.
Class A predicts roughly 1–2% surgical mortality; class B 10–31%; class C 76–82%.
The score is a clinical tool. Always interpret results alongside the full clinical picture.

Use cases

Assessing a cirrhotic patient before elective surgery to estimate operative risk.
Evaluating candidacy or urgency for liver transplantation.
Monitoring disease progression over serial clinic visits.
Communicating prognosis clearly between care teams.
Classifying patients for clinical trial enrollment criteria.

Child-Turcotte-Pugh Score Calculator

Clinical Parameters

Score Breakdown

Clinical Interpretation