What is the normal creatinine (Cr) level range in mg/dL?

The normal creatinine level range in mg/dL typically falls between 0.6 to 1.3 mg/dL for most adults. This range is an important indicator of kidney function, as creatinine is a waste product formed from muscle metabolism and is usually cleared from the bloodstream by the kidneys. When kidney function declines, creatinine levels can rise, indicating potential renal impairment.

Understanding this range is vital for healthcare providers as it aids in the assessment of a patient's renal health and helps to inform further diagnostic and treatment decisions. Factors such as age, sex, muscle mass, and hydration status can influence creatinine levels, but the specified range is generally accepted in clinical practice and is a key reference point for monitoring kidney function.