How much energy do infants require daily?

Appeared in: Punjab CHO - 2021

Explanation

Healthy, full-term infants require approximately 110-120 kcal per kilogram of body weight per day to support their rapid growth and high metabolic rate, especially during the first few months of life.
This energy is allocated to basal metabolism, physical activity, thermoregulation, the specific dynamic action of food, and, most importantly, the formation of new tissues.
The energy needs are highest immediately after birth and gradually decrease per kilogram as the infant gets older and the growth rate slows.

Option B: This range is too high for a typical healthy, full-term infant.
Option C: This is an exceptionally high caloric requirement, far exceeding the needs of a healthy infant.
Option D: This option is logically incorrect because there is a specific, established range for healthy infants. The different caloric needs correspond to different populations (e.g., healthy vs. preterm) and are not simultaneously applicable to a single group.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Infant caloric requirements as background academic context rather than a clinical decision trigger.
Nurses use knowledge of caloric requirements to perform nutritional assessments, tracking an infant's weight gain and plotting it on standardized growth charts to ensure they are thriving.
This information is vital for educating new parents on appropriate feeding volumes of breast milk or formula to prevent underfeeding (leading to poor growth) or overfeeding (which can lead to obesity).
A key nursing role is to identify deviations from normal growth patterns that may indicate an underlying health issue or inadequate nutritional intake.

How to Approach the Question

First, identify the core of the question, which is the standard daily energy requirement for 'infants'. In nursing, 'infant' typically refers to a healthy, full-term baby unless specified otherwise.
Recall foundational knowledge of pediatric nutrition. Remember that infants have the highest energy requirements per unit of body weight compared to any other life stage due to rapid growth.
Evaluate the given options. The range of 110-120 kcal/kg/day is the widely accepted standard for healthy term infants in the early months.
Critically assess the other options. The higher ranges (150-160 and 200-250 kcal/kg) are clearly excessive for a healthy infant and should be recognized as values for special clinical situations (e.g., prematurity, illness).
Eliminate the 'All of the above' option, as the requirements are specific to the infant's health status and age, making it impossible for all ranges to be correct simultaneously for a standard infant.

Concept Tested & Keywords

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E6 Nutrition Kumud Khanna 2e pp. 121-123, 120-122

Practise the full Punjab CHO - 2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.