After teaching an in-service program to a group of nurses working in newborn nursery about a neutral thermal environment, the nurse determines that the teaching was successful when the group identifies which process as the newborn's primary method of heat production?
nonshivering thermogenesis
cold stress
convection
bilirubin conjugation
The Correct Answer is A
A. Nonshivering thermogenesis is the primary method of heat production in newborns. Unlike adults, newborns do not generate heat through shivering. Instead, they rely on the metabolism of brown adipose tissue (brown fat) to produce heat. This process is triggered by exposure to cold and helps maintain body temperature.
B. Cold stress is a condition, not a heat production mechanism. It occurs when the newborn is exposed to cold temperatures, leading to increased oxygen and energy demands as the body attempts to produce heat — which can be dangerous.
C. Convection is a method of heat loss, not production. It occurs when heat is lost from the body surface to cooler surrounding air (e.g., drafts in the room).
D. Bilirubin conjugation is related to the liver's processing of bilirubin and has nothing to do with thermoregulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The client talks frequently about her labor and delivery is a characteristic behavior of the Taking In phase, which occurs during the first few days postpartum. During this phase, the mother is primarily focused on her own needs and recovering from childbirth. She may want to discuss her labor and delivery experience and may be more focused on rest and reflection rather than engaging with the baby.
B. The client hesitates to initiate contact with the baby is more characteristic of the Taking Hold phase, which comes after the Taking In phase. In the Taking Hold phase, the mother begins to take more responsibility for her baby’s care, though she may still seek guidance.
C. The client questions the nurse about the amount of formula for the baby indicates a more active engagement in learning about infant care, which is typical of the Taking Hold phase, where the mother starts to focus on baby care and becomes more involved.
D. The client requests between meals snacks is a sign of physical recovery and possibly an increased need for nourishment, but it does not specifically indicate being in the Taking In phase. This behavior may occur in any phase but is not a defining characteristic.
Correct Answer is B
Explanation
A. Convection is the loss of heat due to air or fluid movement around the body. While keeping the newborn warm in a draft-free area can help with this, the blanket on the scale primarily addresses heat loss through contact with the cold surface.
B. Conduction occurs when heat is transferred from the baby’s body to a cooler surface that it comes into direct contact with, like the cold scale. By placing a warmed blanket on the scale, the nurse minimizes heat loss due to conduction, ensuring the baby stays warm.
C. Radiation involves heat transfer to cooler objects nearby, but a warmed blanket on the scale does not directly address heat loss through radiation.
D. Evaporation occurs when moisture on the skin evaporates, taking heat away. A warmed blanket would not primarily address evaporation; it’s meant to prevent conduction heat loss.
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