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Ast Alt Ratio Calculator


FAQ

What should AST to ALT ratio be?

Here are the range of AST to ALT ratio.

Condition

Ast:Alt ratio

NAFLD in at-risk patients without liver fibrosis or cirrhosis

Less than 1

Liver fibrosis

1 or greater

Alcohol abuse without cirrhosis

1.1 or less

Alcohol abuse with cirrhosis

Greater than 1.1

Biliary obstructions, intrahepatic

Greater than 1.5

Biliary obstructions, extrahepatic

Less than 1.5

Critical limb ischemia in peripheral artery disease

Greater than 1.67

Advancing cirrhosis

Greater than 2

Advanced alcoholic liver disease

Greater than 3

What if AST:ALT ratio is higher than 1?

  • An Ast Alt ratio of AST ALT greater than 1 can be indicative of cirrhosis - a scar tissue transformation of the liver that eventually results in a loss of its function.

What does high AST ALT ratio mean?

High AST ALT ratio can be caused by factors located outside of the liver, such as

  • Hemolysis (the breakdown of the red blood cells)
  • Muscle
  • Thyroid gland diseases

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