Normal neonatal creatinine range?

Normal neonatal creatinine range?

• A. 0.2-1.0
• B. 0.11 - 0.68
• C. 0.05-0.3
• D. 1.0-1.5

Answer: (B)

Neonatal creatinine reflects both the newborn’s immature kidney function and the influence of maternal creatinine right after birth. Because newborns rely partly on maternal creatinine initially, values can be higher early on and then gradually decline as renal function matures. In healthy neonates, serum creatinine typically ranges from about 0.11 to 0.68 mg/dL, capturing the lower values seen as the baby’s own kidneys start to clear creatinine and the higher values that can occur in the immediate postnatal period before maturation stabilizes. Values well above ~1 mg/dL would raise concern for renal impairment, while very low values are uncommon in this population. Hence, the range around 0.11–0.68 mg/dL best fits normal neonatal creatinine.

Neonatal creatinine reflects both the newborn’s immature kidney function and the influence of maternal creatinine right after birth. Because newborns rely partly on maternal creatinine initially, values can be higher early on and then gradually decline as renal function matures. In healthy neonates, serum creatinine typically ranges from about 0.11 to 0.68 mg/dL, capturing the lower values seen as the baby’s own kidneys start to clear creatinine and the higher values that can occur in the immediate postnatal period before maturation stabilizes. Values well above ~1 mg/dL would raise concern for renal impairment, while very low values are uncommon in this population. Hence, the range around 0.11–0.68 mg/dL best fits normal neonatal creatinine.