A nurse performs growth measurements at a 6-month well child visit. The infant weighed 8 pounds (3.6 kg) at birth and now weighs 16 pounds (7.3 kgs). Which of the following conclusions should the nurse make?

A. The infant's growth is inadequate because infants should gain 1 lb per month: While a general guideline suggests infants gain about 1–1.5 pounds per month in the first 6 months, growth should be evaluated cumulatively. Doubling of birth weight by 4–6 months is a more accurate marker of adequate growth than monthly increments alone. B. The infant's growth is delayed because birth weight should triple by 6 months: Birth weight typically triples by 12 months, not 6 months. Expecting tripling by 6 months would incorrectly label normal growth as delayed. C. The infant's weight gain indicates overfeeding and requires dietary modification: The infant’s weight progression from 8 to 16 pounds in 6 months represents normal growth, consistent with expected doubling of birth weight. No dietary modification is required in a healthy infant showing standard growth patterns. D. The infant's growth is appropriate because birth weight typically doubles by 6 months: Doubling of birth weight by around 4–6 months is an established milestone in pediatric growth. This indicates adequate caloric intake, effective feeding, and normal development.