Which finding indicates to the nurse that a 4-day-old infant is receiving adequate breast milk?

• A. Gains 1 to 2 ounces per week
• B. Saturates 6 to 8 diapers per day
• C. Rests for 6 hours between feedings
• D. Defecates at least once per 24 hours

Answer: (B)

A reliable sign that a four-day-old infant is getting enough breast milk is the number of wet diapers. When a breastfed newborn is feeding well, urine output should be plentiful, and about six to eight wet diapers in a 24-hour period by day four is a strong indicator of adequate milk transfer and hydration. This pattern reflects that the baby is receiving enough intake to produce enough urine, which is a practical, observable measure for clinicians and parents.

Weight gain in the first days isn’t a dependable marker of adequacy because newborns often lose weight initially and may not start regaining until after day 3 or 4. Gaining 1–2 ounces per week at this stage would be inconsistent with the expected course and could mask underfeeding. Long intervals between feedings (such as six hours) suggest the baby isn’t feeding frequently enough, which is not compatible with typical newborn needs. Defecating only once per 24 hours isn’t a reliable indicator either, since stooling patterns vary and early stools can be infrequent even with good milk intake.

So, six to eight wet diapers a day most clearly signals that the infant is receiving adequate breast milk.