Gastroenterology

APRI Score

AST to Platelet Ratio Index - simple non-invasive marker for advanced fibrosis and cirrhosis

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Input Parameters

AST

U/L

AST Upper Limit of Normal

U/L

Platelet Count

×10⁹/L

Clinical Note (Optional)

0/500 characters

Other evidence-based tools commonly used alongside this calculator

CT Severity Index (CTSI) — Pancreatitis

Balthazar CT Severity Index for acute pancreatitis — combines pancreatic inflammation grade and necrosis extent

Glasgow-Blatchford Score (GBS)

Risk stratification for upper GI bleeding - identifies patients safe for outpatient management

FIB-4 Index

Non-invasive fibrosis assessment using age, AST, ALT, and platelets for NAFLD and viral hepatitis

Child-Pugh Score

Classifies cirrhosis severity and predicts prognosis and surgical risk in chronic liver disease