Creatinine Blood Test (cont.)

Medical Author:
Medical Editor:

What are "normal" blood creatinine levels?

Normal levels of creatinine in the blood are approximately 0.6 to 1.2 milligrams (mg) per deciliter (dL) in adult males and 0.5 to 1.1 milligrams per deciliter in adult females. (In the metric system, a milligram is a unit of weight equal to one-thousandth of a gram, and a deciliter is a unit of volume equal to one-tenth of a liter.)

Muscular young or middle-aged adults may have more creatinine in their blood than the norm for the general population. Elderly persons, on the other hand, may have less creatinine in their blood than the norm. Infants have normal levels of about 0.2 or more, depending on their muscle development. In people with malnutrition, severe weight loss, and long standing illnesses, the muscle mass tends to diminish over time and, therefore, their creatinine level may be lower than expected for their age.

A person with only one kidney may have a normal level of about 1.8 or 1.9. Creatinine levels that reach 2.0 or more in babies and 10.0 or more in adults may indicate severe kidney impairment and the need for a dialysis machine to remove wastes from the blood.

Medically Reviewed by a Doctor on 4/11/2014

Patient Comments

Viewers share their comments

Creatinine Blood Test - Results Question: Why did your health care professional want to check your creatinine levels?
Creatinine Blood Test - Normal Levels Question: Were your creatinine blood test results higher than normal levels? If so, what was the diagnosis and what action was taken to lower the creatinine levels?
Creatinine Blood Level - Experience Question: Please describe your experience with high or low creatinine blood levels.