A nurse is caring for a newborn shortly after birth and places the newborn under a radiant warmer. Which of the following potential complications does this action help to prevent?
Cold stress
Thermogenesis
Shivering
Brown fat production
The Correct Answer is A
This action helps to prevent cold stress. This is because cold stress is a condition where the newborn's core temperature drops below 36.5°C and they use energy and oxygen to generate warmth. This can lead to hypoglycemia, metabolic acidosis, hypoxia, and an increased risk of infection.
Placing the newborn under a radiant warmer provides thermal stability and prevents heat loss by radiation.
Choice B is wrong because thermogenesis is the process of heat production, not a complication.
Choice C is wrong because shivering is a mechanism of heat production in adults, not in newborns.
Choice D is wrong because brown fat production is a normal feature of newborns that helps them generate heat by lipolysis.
Here is an image of a newborn under a radiant warmer.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Place the infant on the mother's abdomen after birth. This will help the infant maintain an adequate body temperature by providing skin-to-skin contact with the mother, which reduces heat loss and promotes bonding. Skin-to-skin contact also stimulates the baby's natural feeding cues and helps initiate breastfeeding.
Choice A is not correct because turning up the temperature in the birth room may not be enough to prevent heat loss from the infant, especially if they are wet or exposed to cold surfaces. It may also make the mother uncomfortable or dehydrated.
Choice B is not correct because bathing the infant immediately after birth may increase heat loss from evaporation and conduction. It may also interfere with the baby's natural protective coating (vernix) and microbiome. Bathing should be delayed until at least 24 hours after birth.
Choice D is not correct because wrapping the infant in a warm, dry blanket may not provide the same benefits as skin-to-skin contact with the mother. It may also prevent the baby from smelling and seeing the mother's breast, which are important cues for breastfeeding initiation.
Correct Answer is B
Explanation
Jaundice in an infant who is 4-hr old. This is because jaundice is a yellow discoloration of the skin and eyes caused by high levels of bilirubin in the blood. Jaundice usually appears between the second and fourth day after birth and lasts for one to two weeks. Jaundice that appears within the first 24 hours of life is considered early-onset jaundice and may indicate a serious problem, such as an infection, a blood type mismatch, or a liver disorder. The nurse should notify the charge nurse of this finding and request a blood test to check the bilirubin level.
Choice A is wrong because a hematocrit of 60% in an infant who is 8-hr old is not abnormal. Hematocrit is the percentage of red blood cells in the blood. Newborns normally have higher hematocrit levels than older children and adults because they have more red blood cells at birth.
Choice C is wrong because a blood glucose fingerstick of 40 mg/dL for an infant who is 1-hr old is not abnormal.
Blood glucose is the amount of sugar in the blood. Newborns normally have lower blood glucose levels than older children and adults because they have less glycogen (stored sugar) at birth.
Choice D is wrong because acrocyanosis in an infant who is 2-hr old is not abnormal. Acrocyanosis is a bluish discoloration of the hands and feet caused by poor circulation. Newborns normally have acrocyanosis for the first few days of life because they are adjusting to the temperature outside the womb.
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