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 C

Explanation

Choice A rationale

Faint red marks on the plantar surface are more common in preterm infants and are not typically seen in post-term infants.

Choice B rationale

Copious vernix is usually seen in preterm infants. Post-term infants often have little to no vernix.

Choice C rationale

Dry, cracked skin is a common finding in post-term infants due to prolonged exposure to the amniotic fluid.

Choice D rationale

Scant scalp hair is more common in preterm infants. Post-term infants usually have more developed hair.

A. Hepatitis B vaccine only, administered within 1 hour of birth. B. Hepatitis B vaccine and Hepatitis B immunoglobulin administered within 12 hours of delivery. C. Hepatitis B immunoglobulin (HBIG) only, administered within 12 hours of birth. D. Hepatitis B immunoglobulin (HBIG) within 12 hours, followed by hepatitis B vaccine monthly for 12 months.

Correct Answer is B

Explanation

Choice A rationale

Administering only the Hepatitis B vaccine within 1 hour of birth is not sufficient for a newborn born to a Hepatitis B positive mother. The newborn also needs Hepatitis B immunoglobulin (HBIG) to provide immediate passive immunity.

Choice B rationale

Administering both the Hepatitis B vaccine and Hepatitis B immunoglobulin (HBIG) within 12 hours of delivery is the recommended practice for newborns born to Hepatitis B positive mothers. This provides both active and passive immunity.

Choice C rationale

Administering only Hepatitis B immunoglobulin (HBIG) within 12 hours of birth is not sufficient. The newborn also needs the Hepatitis B vaccine to develop long-term immunity.

Choice D rationale

Administering Hepatitis B immunoglobulin (HBIG) within 12 hours, followed by monthly Hepatitis B vaccines for 12 months, is not the standard practice. The newborn should receive the Hepatitis B vaccine series according to the recommended schedule. .

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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?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

Correct Answer is B

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?