AI Summary A medical score combines lab values, imaging findings, and exam findings into one number or grade that your care team can track. Seven groups cover liver severity, fibrosis, fatty liver, hepatic encephalopathy, alcohol-associated liver disease, liver cancer risk, and acute liver failure. Doctors use scores to gauge severity, track scarring, and guide treatment. A score does not diagnose disease alone. Your care team reads it with symptoms and other tests to plan next steps.
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A medical score combines several test results, such as blood values, imaging findings, or exam findings, into one number or grade. Doctors use scores to estimate how severe liver disease is, how much scarring has built up, or how likely a complication is.
This page covers seven groups of scores: liver severity and cirrhosis, fibrosis, MAFLD/MASH, hepatic encephalopathy, alcohol-associated liver disease, liver cancer risk, and ICU or acute liver failure. It explains why your doctor may use a score, how scores are read, and what they cannot tell you.
A score does not diagnose liver disease on its own. Your care team reads it together with your symptoms, exam, and other tests.
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Each group answers a different question. Your doctor chooses the score that fits your diagnosis and your stage of care.
These scores estimate how well the liver is working in advanced disease. They include the MELD score, MELD-Na, and the Child-Pugh score. MELD uses bilirubin, creatinine, and INR. MELD-Na adds sodium. Transplant programs use MELD to prioritize candidates.
Fibrosis is scar tissue in the liver. Fibrosis scores include FIB-3/FIB-4, APRI, and ELF. FIB-4 and APRI use routine blood values. ELF measures blood markers linked to fibrosis. Doctors often use these scores to decide whether a scan such as FibroScan is needed next.
This group covers fatty liver disease. It includes the FAST, SAFE, MAFLD, MAST, cTAG, Hepatic Steatosis Index, Fatty Liver Index, and BARD scores. The FAST score combines FibroScan readings with blood tests to estimate the risk of NASH with significant fibrosis. The cTAG score uses imaging and metabolic markers to find fibrosis risk in MASH.
Hepatic encephalopathy (HE) is a change in brain function caused by liver disease. The West Haven Criteria grade how severe HE is at the bedside. The HAST/HASA score estimates HE risk from blood tests and cognitive testing.
These scores help assess alcohol-associated hepatitis. They include the Maddrey discriminant function, the Lille score, the Glasgow Alcoholic Hepatitis Score, and the ABIC score. Maddrey measures how severe the illness is. Doctors use the Lille score to reassess response after about the first week of prednisolone treatment.
This group covers the GALAD score. Liver cancer monitoring is individualized. Ultrasound with an alpha-fetoprotein (AFP) blood test every six months is preferred over ultrasound alone.
These scores are used in hospital care. They include CLIF-C ACLF, the SOFA score, and the ALBI score. Scores built for acute-on-chronic liver failure (ACLF) count both liver and other organ failures. They are recommended instead of conventional cirrhosis scores.
When Doctors Use Scores
Your doctor may use one or more scores at different points in your care.
Scores such as MELD describe how well the liver is working in advanced disease. The MELD score is mainly used to prioritize patients for liver transplantation. It also helps guide medical management.
People with chronic liver disease, such as hepatitis B, hepatitis C, or fatty liver disease, may get a FIB-4 score to monitor scarring. It can help avoid or delay a liver biopsy when possible. FIB-4 is good at showing who does not have advanced fibrosis, so some people may not need an immediate specialist referral.
In alcohol-associated hepatitis, the Maddrey discriminant function and the MELD score help find patients at high risk of short-term death. Corticosteroids are typically considered for severe cases, defined as a Maddrey score of 32 or higher or a high MELD, when there is no uncontrolled infection or stomach or bowel bleeding. Doctors often reassess response with the Lille score after the first 7 days of prednisolone.
The West Haven Criteria rate hepatic encephalopathy at the bedside, from mild changes to coma. Doctors use the grade to decide how urgent care is and how to treat it.
For people with cirrhosis who need surgery, tools such as the MELD score, Child-Pugh score, and VOCAL-Penn score are recommended to predict risk. Doctors also weigh other health problems, such as heart failure, COPD, and frailty.
Score Result Ranges
Labs and clinics may use slightly different cutoffs, so always ask how your own result is read.
| Score | Result | What it may mean |
|---|---|---|
| MELD | 6–9 | Low risk. Liver function is relatively preserved. |
| MELD | 10–19 | Moderate risk. Your doctor may monitor you more closely. |
| MELD | 20–29 | High risk. You may need urgent evaluation for transplant. |
| MELD | 30–39 | Very high risk. Urgent transplant is likely. |
| MELD | 40 or higher | Critical risk without immediate treatment. |
| FIB-4 | Below 1.45 | Low risk. Significant scarring is unlikely. |
| FIB-4 | 1.45–3.25 | Intermediate risk. You may need a scan such as FibroScan. |
| FIB-4 | Above 3.25 | High risk. Advanced fibrosis or cirrhosis is likely. Specialist evaluation is recommended. |
| FIB-3 | Below 1.3 | Low risk. |
| FIB-3 | 1.3–2.67 | Intermediate risk. Further testing or monitoring may be needed. |
| FIB-3 | Above 2.67 | High risk. Specialist evaluation is usually needed. |
| HAST/HASA | Below 10 | Minimal risk of hepatic encephalopathy. |
| HAST/HASA | Above 20 | High risk of hepatic encephalopathy. Urgent evaluation is usually needed. |
| Maddrey discriminant function | 32 or higher | Severe alcohol-associated hepatitis. |
FIB-4 cutoffs vary. Some clinics use about 1.3 and 2.6 instead of 1.45 and 3.25. A score is a starting point, not a diagnosis. Your doctor interprets it with your symptoms, other tests, and health history.
Score Formulas Explained
You do not calculate these yourself. Your lab or care team enters your results into a formula or online calculator.
Each score answers one question. A MELD score reflects short-term liver failure risk. A FIB-4 score reflects scarring risk and does not measure fat or inflammation.
The MELD equation uses natural logarithms (ln). Your care team's software handles the math.
Score Testing Process
Most scores need no special preparation, because they use results from tests you may already have had.
Scores built from blood values use routine lab results. Unlike imaging or biopsy, the MELD score does not involve a procedure. It uses blood test results. FIB-4 works the same way and uses age plus routine lab values.
The FAST score adds FibroScan measurements to blood tests. A score such as the cTAG score uses imaging and metabolic markers. Your care team will tell you if a scan is needed.
Your doctor can repeat a score over time to watch for change. A single result is one snapshot. Scores can also miss urgency: for MELD, a provider can request extra points for conditions such as liver cancer, acute liver failure, or hepatopulmonary syndrome when the score does not reflect how urgently a transplant is needed.
After Your Score Result
Your doctor will review your score with your other results and decide if any next steps are needed. This may include more testing, monitoring, treatment, or lifestyle changes.
Treatment depends on what is affecting your liver. Some conditions can be managed with lifestyle changes, while others need medication or specialist care.
Diet plays an important role in supporting liver health and may help prevent further liver damage in many conditions.
Doctor Visit Preparation
Bring these questions to your next appointment. Writing down your scores and dates helps you track changes.
Common Questions
No. A high score points to higher risk and calls for a closer look. A high FIB-4 score, for example, suggests a high likelihood of advanced fibrosis. It does not confirm the diagnosis, so your provider will order further evaluation.
Not always. Blood-based scores such as MELD and FIB-4 need only a blood draw and no procedure. Some scores, such as FAST, also use FibroScan measurements. Doctors often use scores to avoid or delay a liver biopsy when possible.
They answer different questions. MELD estimates short-term risk of complications in advanced liver disease and helps prioritize transplant candidates. FIB-4 estimates liver scarring and is used as a screening step. FIB-4 does not measure fat or inflammation.
Yes. Doctors can repeat scores to follow disease progression and check whether treatment is working. Your score can go up or down as your labs change, so ask your care team how often they plan to check it.
The West Haven Criteria grade how severe hepatic encephalopathy is at the bedside. The HAST/HASA score estimates the risk of hepatic encephalopathy from blood tests and cognitive testing. Your doctor picks the tool that fits your situation.
Medical disclaimer: LiverDirectory provides educational information and a directory of providers. It does not provide medical advice, diagnosis, or treatment. Always consult a licensed physician regarding any medical condition.
