What is the approximate total daily fluid requirement of a healthy term neonate on the first day of life?

• A 20 to 30 mL/kg/day
• B 60 to 80 mL/kg/day ✓
• C 100 to 120 mL/kg/day
• D 150 mL/kg/day

Explanation

Term newborns require about 60 to 80 mL/kg/day on day 1, rising progressively to roughly 100 to 120 mL/kg/day by days 3 to 5 and approaching 150 mL/kg/day by the end of the first week. The increase tracks maturation of glomerular filtration and expanding insensible losses through the skin. Starting at full maintenance volumes immediately risks patent ductus arteriosus, edema, and delayed adaptation in the transitional circulation. The lowest values apply only to extremely premature restricted protocols, not term babies.

Reference: Ghai Essential Pediatrics, 9th ed.

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Written and medically reviewed by the StethoPrep medical team.