A case report of macro-AST with isolated elevated aspartate aminotransferase in a child / 中华检验医学杂志

We need to consider the macro-AST when the elevated AST activity cannot be explained. A 3-year-old child was found to have an increase in serum AST activity, but no obvious abnormality be found ofter examination. The PEG precipitation assay showed that the activity was 98.7%, which was diagnosed as macro-AST.