Multiple choice

Which of the following is true in a normal person?

  1. AST/ALT > 1

  2. AST/ALT > 2

  3. AST/ALT< 1

  4. ALT/AST < 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a normal person, ALT (mostly liver-specific) is higher than AST (also found in muscle, heart, kidney), so the AST/ALT ratio is less than 1. In alcoholic liver disease, AST > ALT giving a ratio > 2. In viral hepatitis, the ratio may be >1 but usually <2.

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