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 D
Explanation
Choice A rationale
Hyperbilirubinemia, or high levels of bilirubin in the blood, can occur in newborns of diabetic mothers due to increased red blood cell breakdown. However, it is not the primary concern immediately after birth. The priority is to address conditions that can cause immediate harm, such as hypoglycemia.
Choice B rationale
Hypomagnesemia, or low magnesium levels, can occur in newborns of diabetic mothers, but it is not the most critical issue. Magnesium levels can be monitored and corrected if necessary, but hypoglycemia poses a more immediate threat to the newborn’s health.
Choice C rationale
Hypocalcemia, or low calcium levels, can also occur in newborns of diabetic mothers. While it is important to monitor and manage calcium levels, hypoglycemia is a more urgent concern because it can lead to severe complications if not addressed promptly.
Choice D rationale
Hypoglycemia, or low blood sugar levels, is the most critical concern for newborns of diabetic mothers. These newborns are at high risk for hypoglycemia due to the high levels of insulin they produce in response to their mother’s elevated blood glucose levels during pregnancy. Hypoglycemia can cause serious complications, including seizures and brain damage, if not treated immediately.
Correct Answer is B
Explanation
Choice A rationale
Erythema toxicum is a common, benign rash seen in newborns. It appears as red patches with small white or yellow pustules in the center. It is not characterized by small raised pearly white spots on the nose and chin.
Choice B rationale
Milia spots are small raised pearly white spots that commonly appear on the nose, chin, and cheeks of newborns. They are caused by trapped keratin and are harmless, usually resolving on their own within a few weeks.
Choice C rationale
Mongolian spots are flat, blue-gray patches commonly found on the lower back and buttocks of newborns, especially those with darker skin. They are not raised and do not appear on the nose and chin.
Choice D rationale
Epstein’s pearls are small white or yellow cysts found on the gums or roof of the mouth in newborns. They are not found on the nose and chin. .