A nurse places a newborn under a radiant heat warmer after birth. The purpose of this action is to prevent which of the following in the newborn?
Shivering.
Cold stress.
Brown fat production.
Basal metabolic rate reduction.
The Correct Answer is B
Choice A rationale
Shivering is not a primary concern for newborns as they have limited ability to shiver. Instead, they rely on non-shivering thermogenesis to maintain body temperature.
Choice B rationale
Cold stress is a significant concern for newborns as it can lead to hypothermia, increased oxygen consumption, and metabolic acidosis. Placing a newborn under a radiant heat warmer helps maintain their body temperature and prevent cold stress.
Choice C rationale
Brown fat production is a natural process in newborns that helps generate heat. However, the primary purpose of using a radiant heat warmer is to prevent cold stress, not to stimulate brown fat production.
Choice D rationale
Basal metabolic rate reduction is not the primary concern. The focus is on preventing cold stress and maintaining the newborn’s body temperature.
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Correct Answer is C
Explanation
Choice A rationale
Wiping the cord daily with alcohol prep pads is not recommended. Current guidelines suggest keeping the cord clean and dry without the use of alcohol, as it can delay the natural drying and falling off process.
Choice B rationale
Keeping the cord moist is not recommended. The cord should be kept dry to promote natural drying and separation. Moisture can increase the risk of infection.
Choice C rationale
Folding the top of the diaper underneath the cord is recommended to keep the cord exposed to air and prevent irritation from urine or stool. This helps the cord dry out and fall off naturally.
Choice D rationale
Applying petroleum jelly to the cord stump is not recommended. The cord should be kept dry, and the use of ointments or creams can interfere with the natural drying process. .
Correct Answer is B
Explanation
Choice A rationale
Erythema toxicum is a common, benign rash in newborns but does not cause swelling that crosses suture lines.
Choice B rationale
A caput succedaneum is swelling of the scalp that crosses suture lines and is caused by prolonged pressure on the head during delivery.
Choice C rationale
Mongolian spots are benign, flat, congenital birthmarks with wavy borders and irregular shapes, typically found on the lower back and buttocks, not the head.
Choice D rationale
A cephalhematoma is a collection of blood between the skull bone and its periosteum that does not cross suture lines. .