Hepatology & GI Calculators
32 calculators.
ABIC Score (Alcoholic Hepatitis)ABIC = 0.1 × age + 0.08 × bilirubin (mg/dL) + 0.3 × creatinine (mg/dL) + 0.8 × INR. It…AIMS65 Score for Upper GI BleedingAIMS65 predicts in-hospital mortality in upper GI bleeding with one point each for…ALBI Grade (Albumin-Bilirubin)The ALBI score = 0.66 × log₁₀(bilirubin µmol/L) − 0.085 × albumin (g/L) grades liver…Alvarado Score for Acute AppendicitisThe Alvarado (MANTRELS) score estimates the probability of acute appendicitis from 8…APRI (AST to Platelet Ratio Index)APRI = (AST ÷ AST upper limit of normal) ÷ platelets (10⁹/L) × 100. In hepatitis C, APRI…BISAP Score for Acute Pancreatitis MortalityBISAP (0–5) predicts in-hospital mortality in acute pancreatitis within the first 24…Boston Bowel Preparation Scale (BBPS)The Boston Bowel Preparation Scale scores right, transverse and left colon cleanliness…Child-Pugh Score for CirrhosisChild-Pugh grades cirrhosis severity from bilirubin, albumin, INR, ascites and…Crohn's Disease Activity Index (CDAI)The CDAI (Best 1976) measures Crohn's disease activity from a 7-day diary plus exam,…CT Severity Index (Balthazar) for Acute PancreatitisThe CT Severity Index adds the Balthazar grade (A–E, 0–4 points) to the extent of…FIB-4 Index for Liver FibrosisFIB-4 = (age × AST) ÷ (platelets × √ALT) estimates advanced liver fibrosis. In…Glasgow Alcoholic Hepatitis Score (GAHS)The Glasgow Alcoholic Hepatitis Score (5–12) uses age, white cell count, urea, PT…Glasgow-Blatchford Bleeding Score (GBS)The Glasgow-Blatchford score (0–23) predicts need for transfusion, endoscopic therapy or…Glasgow-Imrie Criteria for Acute Pancreatitis SeverityThe modified Glasgow (Imrie) score counts 8 laboratory criteria within 48 hours of…Harvey-Bradshaw Index (Crohn's Disease)The Harvey-Bradshaw Index scores Crohn's disease activity from well-being, abdominal…King's College Criteria for Liver Transplant in Acute Liver FailureKing's College Criteria identify acute liver failure patients unlikely to survive…Lille Model (Day 7, Alcoholic Hepatitis)The Lille model assesses response to corticosteroids in severe alcohol-associated…Maddrey Discriminant Function (Alcoholic Hepatitis)Maddrey's modified discriminant function = 4.6 × (patient PT − control PT) + bilirubin…MELD 3.0 (Kim 2021, OPTN 2023)MELD 3.0 adds female sex and albumin to MELD-Na with updated coefficients and a…MELD Score (original UNOS MELD)The original MELD score (UNOS version) predicts 3-month mortality in cirrhosis from…MELD-Na Score (UNOS/OPTN 2016)MELD-Na adds serum sodium (bounded 125–137 mmol/L) to MELD and was used for US liver…Milan Criteria for Liver Transplantation in Hepatocellular CarcinomaMilan criteria: a single HCC ≤5 cm, or up to 3 tumours each ≤3 cm, with no macrovascular…Modified Marshall Score for Organ Failure (Acute Pancreatitis)The modified Marshall score (revised Atlanta 2012) grades respiratory (PaO₂/FiO₂), renal…NAFLD Fibrosis ScoreThe NAFLD Fibrosis Score combines age, BMI, diabetes/IFG, AST/ALT ratio, platelets and…Oakland Score for Lower GI BleedingThe Oakland score (0–35) predicts safe discharge in acute lower GI bleeding from age,…Partial Mayo Score (Ulcerative Colitis)The partial (non-invasive) Mayo score rates ulcerative colitis activity from stool…Ranson Criteria for Acute PancreatitisRanson's criteria score acute pancreatitis with 5 admission and 6 (non-gallstone) or 5…Rockall Score (Complete, Post-endoscopy)The complete Rockall score (0–11) adds endoscopic diagnosis and stigmata of recent…Rockall Score (Pre-endoscopy / Clinical)The pre-endoscopy (clinical) Rockall score (0–7) uses age, shock and comorbidity to…Serum-Ascites Albumin Gradient (SAAG)SAAG = serum albumin − ascitic fluid albumin (same day). A SAAG ≥1.1 g/dL indicates…Stool Osmotic GapStool osmotic gap = 290 − 2 × (stool Na + stool K). A gap >125 mOsm/kg suggests osmotic…Truelove and Witts Criteria (Ulcerative Colitis Severity)Truelove and Witts criteria classify ulcerative colitis flares. Acute severe UC = ≥6…