Your doctor will have you perform a range of movements to help determine whether you have a torn rotator cuff. Share on Pinterest Your rotator cuff is a group of four muscles that stabilizes the ball ...

Average creatinine levels can vary depending on a person’s age, sex, and muscle mass. However, average ranges are 0.7 to 1.2 milligrams per deciliter (mg/dL) for males and 0.5 to 1.0 for females.