Which combination best describes factors contributing to lower energy needs in stressed neonates?

• A. Absence of growth; Decreased activity; Reduction of insensible losses
• B. Absence of growth only
• C. Decreased activity only
• D. Reduction of insensible losses only

Answer: (A)

The main idea is that energy needs in stressed neonates are driven by growth, activity, and maintenance losses, and lowering any of these reduces overall expenditure, with the greatest effect when all three are reduced.

Absence of growth means energy normally used for tissue accretion and development isn’t required, so calories aren’t diverted to growth processes. Decreased activity lowers metabolic demand because less movement and stress-related energy use occur. Reduction of insensible losses cuts the energy needed to compensate for water and heat losses through the skin and respiratory tract; in neonates these losses are a substantial portion of maintenance energy, so reducing them lowers total energy requirements. When all three factors are minimized, the neonate’s energy needs are markedly lower than if growth continues, activity remains higher, or insensible losses are greater.