<qa>  What is the maximum limit of normal aspartate aminotransferase?Blood white cell count3.0109L, Neutrophile cell count 1.5109L Platelet count 100109L Total bilirubin TB 1.5 times upper limit of normal Aspartate aminotransferase AST, alanine aminotransferase ALT 2 times upper limit of normal; for subjects with hepatic metastasis, AST, ALT 5 times upper limit of normal Creatinine clearance50mlmin 