Mrs. L is not sure if her 3-month-old infant is getting enough calories to meet her recommended daily requirements for growth even though she continues to gain weight. The nurse tells her that infants:
1. Only require about 50 kcalorie/kg/day because of low energy expenditure.
2. Require about 450 kcalories/day because of rapid growth.
3. Need fewer calories per kilogram than adults because of their high respiratory and heart rate.
4. Use few calories/day to maintain core body temperature.
2
Rationale: Infants up to 6 months require about 108 kcalories/kg/day. Infants up to age 6 months require about 450 kcalories/day to support rapid growth and meet metabolic demands. Higher respiratory and heart rates require more kcalories/kg/day than those required for adults. The amount of energy needed to maintain the core body temperature increases the kcalories/kg/day required for infants. .
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