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.

Answer and Explanation

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 B

Explanation

Choice A rationale

Small for gestational age (SGA) refers to newborns whose birth weight is below the 10th percentile for their gestational age.

Choice B rationale

Appropriate for gestational age (AGA) refers to newborns whose birth weight is between the 10th and 90th percentiles for their gestational age. A newborn weighing 3350 g at 39 weeks gestation falls within this range.

Choice C rationale

Low birth weight is defined as a birth weight of less than 2500 g, which does not apply to this newborn.

Choice D rationale

Large for gestational age (LGA) refers to newborns whose birth weight is above the 90th percentile for their gestational age.

A. Depressed fontanelles are only seen in premature newborns. B. Depressed fontanelles indicate infection. C. Depressed fontanelles are a sign of dehydration. D. Depressed fontanelles are a normal finding in newborns.

Correct Answer is C

Explanation

Choice A rationale

Depressed fontanelles are not exclusive to premature newborns. They can occur in both premature and full-term infants and are not an indicator of prematurity.

Choice B rationale

Depressed fontanelles do not indicate infection. Infections in newborns typically present with other symptoms such as fever, irritability, and poor feeding.

Choice C rationale

Depressed fontanelles are a sign of dehydration in newborns. When a newborn is dehydrated, the fontanelles can appear sunken due to the lack of fluid in the body.

Choice D rationale

Depressed fontanelles are not a normal finding in newborns. Normally, fontanelles should be flat or slightly curved inward. A depressed fontanelle is a clinical sign that requires further evaluation and intervention.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a newborn who was born at 39 weeks gestation and weighs 3350 g. Based on the weight and gestational age, what is the most appropriate way to document the findings?

Correct Answer is B

Explanation

A nurse is performing a newborn assessment and notes depressed fontanels.Which of the following is true regarding depressed fontanels in newborn assessment?

Correct Answer is C

Explanation

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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?