<qa>  What is the maximum limit of normal creatinine?- Serum creatinine OR Measured or calculated a creatinine clearance aCreatinine clearance should be estimated per institutional standard GFR can also be used in place of creatinine or CrCl 1.5 X upper limit of normal ULN OR 60 mLmin for subject with creatinine levels 1.5 X institutional ULN 