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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View Related questions
Correct Answer is A
Explanation
Choice A rationale
The Babinski reflex is elicited by stroking the outer edge of the sole of the newborn’s foot, moving up toward the toes. This causes the big toe to move upward and the other toes to fan out.
Choice B rationale
Turning the newborn’s head quickly to one side is used to elicit the tonic neck reflex, not the Babinski reflex.
Choice C rationale
Holding the newborn vertically and allowing one foot to touch the table surface is used to elicit the stepping reflex, not the Babinski reflex.
Choice D rationale
Clapping near the crib and making a loud noise is used to elicit the startle (Moro) reflex, not the Babinski reflex.
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.