16/02/2026
ALT AST Enzymes, How To Interpret Liver Injury Patterns Correctly!
ALT and AST are not liver function tests. They reflect hepatocyte injury. Understanding the pattern helps prevent wrong lab interpretation.
🔬 What ALT and AST Show
Know the source before reading the report
1️⃣ ALT is more liver specific, rises in viral hepatitis and fatty liver
2️⃣ AST is present in liver, muscle, heart, so context matters
3️⃣ Enzyme elevation means cell damage, not function loss
📊 AST ALT Ratio Guide
Simple clinical clues from enzyme patterns
1️⃣ ALT higher than AST, think viral or metabolic injury
2️⃣ AST ALT ratio above 2, consider alcohol related damage
3️⃣ Mild equal rise may appear in chronic liver disease
⚠️ Clinical Tip
Always correlate with bilirubin, ALP, GGT, history, and symptoms.
Save this guide to avoid misreading liver enzyme reports.
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