What are the normal results for a kidney function test?

Normal creatinine. Usually creatinine normal level varies between persons depending on their muscle mass. A body builder will have high creatinine than a thin or emaciated person. A man will have more than a woman. If you are about a 170- 200 lbs male, your creatinine will be about 0.8 to 1.1 if more, the kidneys are weak unless your 200 lbs are all muscles! a woman of same weight has less creat .6-.9unless muscular.