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Math Help - About ratio

  1. #1
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    Jul 2009
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    About ratio

    Hi folks,

    Please help me to understand what are;

    1)
    AST:ALT ratio equal to one (ALT is higher or equal to AST) ?

    My understanding is if both are of equal number

    Ex.
    AST=20 and ALT=20 then the ratio equal to 1. But how can ALT higher than AST?


    2)
    AST:ALT ratio higher than one (AST is higher than ALT) ?


    Thanks in advance


    B.R.
    satimis
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  2. #2
    Senior Member
    Joined
    Jul 2009
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    Hi satimis!

    Quote Originally Posted by satimis View Post
    1)
    AST:ALT ratio equal to one (ALT is higher or equal to AST) ?

    My understanding is if both are of equal number
    that's right

    2)
    AST:ALT ratio higher than one (AST is higher than ALT) ?
     AST : ALT = \frac{AST}{ALT}

    If AST:ALT ratio higher than one, then AST > ALT
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  3. #3
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    Quote Originally Posted by songoku View Post
    Hi satimis!



    that's right



     AST : ALT = \frac{AST}{ALT}

    If AST:ALT ratio higher than one, then AST > ALT
    Hi songoku,


    Thanks for your advice. Please let me inform you the story behind.

    I read a medical article. It says:
    Code:
    * An AST:ALT ratio equal to one (the level of ALT is higher or equal to AST), but the levels are very high, suggests acute viral hepatitis or drug-related hepatitis.
    * An AST:ALT ratio higher than 2:1 (two times the level of AST to ALT) is very suggestive of alcoholic liver disease.
    * An AST:ALT ratio higher than one (where the level of AST is higher than the ALT) could also indicate cirrhosis in a person that doesn't have alcoholic hepatitis.
    I am confused on
    Code:
    * An AST:ALT ratio equal to one (the level of ALT is higher or equal to AST)...
    How can AST:ALT ratio equal to one if the level of ALT is higher than AST (AST>ALT) ?

    TIA


    B.R.
    satimis
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  4. #4
    Senior Member
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    Jul 2009
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    Yes, that's confusing

    Mathematically, that's wrong, but i don't know if that has another meaning in medical section
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  5. #5
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    Quote Originally Posted by songoku View Post
    Yes, that's confusing

    Mathematically, that's wrong, but i don't know if that has another meaning in medical section
    Noted. Thanks

    B.R.
    satimis
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