Final answer:
The target axillary temperature range for a preterm newborn is 36.5°C to 37.5°C. Within this range, vital physiological functions are supported, and risks associated with temperature dysregulation are minimized.
Step-by-step explanation:
The target axillary temperature range for the preterm newborn is option 4) 36.5°C to 37.5°C. This range falls within the normal body temperature range for human beings, which is typically between 36.5°C to 37.5°C (97.7°F to 99.5°F). For preterm infants, maintaining an appropriate body temperature is critical, as their ability to regulate their own body temperature may not be fully developed, leading to higher risks of hypothermia or hyperthermia.
Importance of Maintaining Proper Body Temperature
The body's setpoint for temperature, especially in preterm infants, is important for overall health. The axillary temperature measurement, while slightly cooler than central core temperature, provides a good estimate of a newborn's thermal status. Maintaining the appropriate temperature range supports essential physiological functions and aids in promoting growth and development in preterm infants.