Which incubator heating mode may make it more difficult to monitor the infant's body temperature as a warning sign for sepsis?

• A. Air temperature servo control
• B. Infant skin temperature servo control
• C. Neither will make it more difficult
• D. Both will

Answer: (B)

Understanding how incubator heating modes affect temperature monitoring helps explain why skin-based control can mask fever, a key warning sign of sepsis in neonates. When the incubator uses the infant’s skin temperature as the feedback signal, the heater adjusts to keep the skin temperature at the set point. If an infant develops fever from an infection, the core temperature may rise, but the system will work to maintain the skin temperature near the target. That means the skin temperature reading stays relatively steady, even though the infant’s overall body temperature is higher. Clinically, this can hide fever as a warning sign because the temperature readouts you rely on are being actively stabilized at the skin level.

If instead the incubator controls by air temperature, the regulation centers on the ambient environment rather than clamping the skin reading. Temperature changes reflect more openly in how the infant’s body responds, so fever is less likely to be obscured by the machine’s feedback loop.

So the mode that makes it harder to monitor the infant’s body temperature as a sepsis warning is the infant skin temperature servo control, because it actively stabilizes skin temperature and can mask fever.