A focused collection of 13 calculators, scores, and clinical references.
BISAP Pancreatitis Mortality Score Explanation and Clinical Context The BISAP Score is a validated early risk stratification tool for predicting mortality in acute pancreatitis. The score incorporates five clinical parameters that can be measured within the first twenty four hours of hospital evaluation. These parameters include blood urea nitrogen elevation impaired mental status systemic inflammatory response syndr
Glasgow Blatchford Score Explanation and Clinical Context The Glasgow Blatchford Score is a preendoscopic risk stratification tool for patients with acute upper gastrointestinal bleeding. It uses clinical and basic laboratory variables available at presentation to estimate the likelihood that a patient will need hospital based intervention such as blood transfusion endoscopic therapy or surgery. The score components
Child Pugh Liver Cirrhosis Score Explanation and Clinical Context The Child Pugh Score is a clinical tool used to assess the severity and prognosis of chronic liver disease particularly cirrhosis. It evaluates five key clinical and laboratory parameters which reflect liver synthetic function portal hypertension and systemic complications of liver dysfunction. These parameters are serum bilirubin serum albumin interna
FIB 4 index Explanation and Clinical Context The FIB 4 index is a noninvasive score that estimates the probability of advanced liver fibrosis using routinely available values including patient age AST ALT and platelet count. It is calculated as age in years multiplied by AST in U per L divided by platelet count in 10 to the power of 9 per L times the square root of ALT in U per L. Commonly used cutoffs are less than
Age Albumin day zero g per dL Bilirubin day zero mg per dL Bilirubin day seven mg per dL Prothrombin time seconds Lille Alcoholic Hepatitis Prognosis Score Explanation and Clinical Context The Lille Alcoholic Hepatitis Prognosis Score is an evidence based tool used to evaluate treatment response in patients with severe alcoholic hepatitis who are receiving corticosteroid therapy. The score combines age albumin biliru
Stool Frequency Enter the score for stool frequency Select 0 Normal number of stools 1 One to two stools more than normal 2 Three to four stools more than normal 3 Five or more stools more than normal Rectal Bleeding Enter the score for rectal bleeding Select 0 No blood seen 1 Small amount of blood less than half of the stools 2 Moderate blood in most stools 3 Large amount of blood in more than half of stools Endosco
Bilirubin mg per dL INR Creatinine mg per dL Sodium mEq per L MELD and MELD Na Score Explanation and Clinical Context The Model for End Stage Liver Disease score is an evidence based severity index developed to estimate short term mortality in patients with chronic liver disease. It is calculated from serum bilirubin international normalized ratio and serum creatinine values to represent the degree of hepatic dysfunc
Age BMI Impaired Fasting Glucose or Diabetes Select Yes No AST ALT Platelet Count Albumin NAFLD Fibrosis Score Explanation and Clinical Context NAFLD Fibrosis Score is a validated noninvasive tool used to estimate the likelihood of advanced liver fibrosis in individuals with nonalcoholic fatty liver disease. The score integrates routine clinical and laboratory variables including age body mass index impaired fasting
Pediatric Crohn Disease Activity Index PCDAI Explanation and Clinical Context The Pediatric Crohn Disease Activity Index is a validated composite instrument used to quantify disease activity in children with Crohn disease. It combines history items including abdominal pain stool pattern and general well being with physical examination findings growth and perianal assessment and laboratory markers including hematocrit
Pediatric Ulcerative Colitis Activity Index PUCAI Explanation and Clinical Context The Pediatric Ulcerative Colitis Activity Index PUCAI is a validated noninvasive clinical score to assess disease activity in children with ulcerative colitis. The index includes six items abdominal pain rectal bleeding stool consistency stool frequency nocturnal stools and activity level. Each item is assigned points and the total sco
Ranson Score for Acute Pancreatitis Explanation and Clinical Context The Ranson score is a prognostic scoring system developed to estimate severity and mortality risk in acute pancreatitis. It uses five clinical and laboratory criteria at admission and six criteria assessed within 48 hours. One point is assigned for each criterion met. A total score of three or greater indicates a high probability of severe disease.
Rockall Upper GI Bleeding Score Explanation and Clinical Context The Rockall score estimates risk of adverse outcome after an acute upper gastrointestinal bleeding episode. It combines three clinical variables available at admission that form the pre endoscopic score and two endoscopic variables that produce the complete score. Age contributes up to two points depending on age group. Hemodynamic status is captured by
Serum Albumin Ascitic Albumin Serum Ascites Albumin Gradient SAAG Explanation and Clinical Context SAAG represents the difference between serum albumin concentration and ascitic albumin concentration. It is a validated method to classify the underlying mechanism of ascites formation and to guide diagnostic reasoning. A value of one point one g per dL or more indicates portal hypertension related etiologies because th