Child-Pugh Score Calculator (Child-Turcotte-Pugh / CTP)

It adds five standard categorical domains—total bilirubin, serum albumin, either INR or PT prolongation, ascites, and hepatic encephalopathy—to produce a 5–15 Child-Turcotte-Pugh score and class A, B, or C.

Sources: [1, 2, 3, 4]

Class A is 5–6 points, class B is 7–9 points, and class C is 10–15 points. The letters are formal score groups; this page does not attach a universal survival percentage or an automatic clinical action to them.

Sources: [1, 2, 3]

No. The score is used after cirrhosis is established, or when an explicit protocol requires CTP classification. A class cannot establish the cause or diagnosis of liver disease.

Sources: [4, 5]

Use one coagulation basis, not both. If the protocol uses INR, select the INR band. If it uses PT prolongation, use seconds above the laboratory control rather than the patient's raw PT in seconds.

Sources: [2, 4, 11]

In this standard table, bilirubin values of exactly 2 and 3 mg/dL are in the two-point band. Albumin values from exactly 2.8 through 3.5 g/dL are also in the two-point band.

Sources: [1, 2]

Yes. Some disease-specific protocols or product labels may specify a modified table. This page deliberately implements the standard total-bilirubin bands shown by the U.S. Department of Veterans Affairs. Follow the exact table required by the applicable protocol.

Sources: [2, 4, 11]

They are clinical categories rather than isolated laboratory values. Treatment response, examination timing, interobserver judgment, sedation, infection, bleeding, kidney injury, and other acute factors can change or confound the documented category.

Sources: [5, 6, 7, 8]

Yes. Anticoagulants can affect INR; albumin or plasma products can affect laboratory values; and diuretics, paracentesis, lactulose, rifaximin, or other treatment can affect the clinical domains. Document the assessment time and treatment state.

Sources: [6, 7, 11]

No. CTP class is associated with outcomes in studied populations, but an individual's outcome also depends on disease cause, complications, trajectory, treatment, comorbidity, and study context. This page does not display a fixed mortality or survival percentage.

Sources: [4, 9, 10]

CTP uses five categorical domains, including clinician-graded ascites and encephalopathy. MELD models use different objective variables and equations. A CTP class cannot be converted into the current U.S. transplant-allocation score.

Sources: [4, 9, 13]

No. It does not submit data to a transplant program, calculate the current allocation model, assign exception points, determine candidacy, or replace transplant-center assessment.

Sources: [5, 9, 13]

No. Some product labels and hepatic-impairment studies refer to CTP class, but there is no universal Child-Pugh dosing algorithm. FDA's September 2026 replacement guidance is a draft not for implementation, and NHS SPS recommends medicine-, patient-, and context-specific assessment. This calculator does not select, prescribe, or adjust medication.

Sources: [3, 11, 12]

It was not developed as an acute-liver-failure model. Acute liver failure, pediatric liver disease, pregnancy, hepatocellular carcinoma, acute-on-chronic liver failure, and other special contexts require the relevant diagnostic and prognostic pathway.

Sources: [4, 5, 8]

Use one clinically coherent, documented assessment time whenever possible. Mixing laboratory values and clinical grades from different treatment states can create a score that never represented the patient at one point in time.

Sources: [4, 5, 6]

No. The minimum score is 5 because every domain contributes at least one point. Class A is the lowest formal CTP class, not proof of normal liver function or absence of clinically important cirrhosis.

Sources: [1, 2, 4]