Which value represents the normal serum creatinine range?

Which value represents the normal serum creatinine range?

• A. 0.4-0.8 mg/dL
• B. 0.6-1.2 mg/dL
• C. 1.2-2.0 mg/dL
• D. 2.0-3.0 mg/dL

Answer: (B)

Creatinine in the blood reflects kidney filtration capacity. In healthy adults, the normal range is about 0.6 to 1.2 mg/dL. Values within this range suggest normal glomerular filtration when hydration and muscle mass are typical. Higher values indicate possible reduced filtration and kidney impairment, with the concern growing as the value rises. Lower values are less common and can occur with unusually low muscle mass or malnutrition. The range 0.6–1.2 mg/dL matches the standard adult reference interval, so it is the best choice.

Creatinine in the blood reflects kidney filtration capacity. In healthy adults, the normal range is about 0.6 to 1.2 mg/dL. Values within this range suggest normal glomerular filtration when hydration and muscle mass are typical. Higher values indicate possible reduced filtration and kidney impairment, with the concern growing as the value rises. Lower values are less common and can occur with unusually low muscle mass or malnutrition. The range 0.6–1.2 mg/dL matches the standard adult reference interval, so it is the best choice.