what is your creatinine in blood tests?
<answer> 0.6 to 1.2 milligrams per deciliter in adult males and 0.5 to 1.1 milligrams per deciliter in adult females. <context> 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. 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.