What are Normal Liver Enzyme Levels?

There are four different liver enzymes included on most routine laboratory tests. They are AST, ALT, AP, and GGT. Normal ranges for AST and ALT are around 0 to 40 IU/L (international unite per liter). Normal levels of AP range from 35 to 115 IU/L, and for GGT are 3 to 60 IU/L. You can find more information here: http://www.liverdisease.com/liverenzymes_hepatitis.html
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