What is the normal range of serum creatinine in adults?

What is the normal range of serum creatinine in adults?

• A. 0.6 to 1.2 mg/dL
• B. 0.1 to 0.5 mg/dL
• C. 1.5 to 2.5 mg/dL
• D. 2.0 to 3.0 mg/dL

Answer: (A)

Creatinine is produced by muscle metabolism and cleared by the kidneys, so its level in the blood reflects kidney function. In healthy adults, the reference range is about 0.6 to 1.2 mg/dL. This range accommodates differences in muscle mass and sex; values near the higher end are common in people with more muscle mass, while lower values can be seen with less muscle. When kidney filtration declines, creatinine rises because it isn’t being cleared efficiently. If you prefer SI units, 0.6–1.2 mg/dL is roughly 53–106 μmol/L.

Creatinine is produced by muscle metabolism and cleared by the kidneys, so its level in the blood reflects kidney function. In healthy adults, the reference range is about 0.6 to 1.2 mg/dL. This range accommodates differences in muscle mass and sex; values near the higher end are common in people with more muscle mass, while lower values can be seen with less muscle. When kidney filtration declines, creatinine rises because it isn’t being cleared efficiently. If you prefer SI units, 0.6–1.2 mg/dL is roughly 53–106 μmol/L.