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?

Basal metabolic rate reduction.

Brown fat production.

Shivering.

Cold stress.

Answer and Explanation

The Correct Answer is D

Choice A reason:

Basal metabolic rate reduction. This is incorrect because a newborn under a radiant heat warmer will have an increased basal metabolic rate, not a reduced one. The basal metabolic rate is the amount of energy the body uses at rest, and it is influenced by temperature. A warmer environment will stimulate the newborn's metabolism and increase the energy expenditure. • Choice B reason:

Brown fat production. This is incorrect because a newborn under a radiant heat warmer will have less need for brown fat production, not more. Brown fat is a type of fat tissue that generates heat by burning calories. It is found in newborns and helps them maintain their body temperature in cold environments. A warmer environment will reduce the need for brown fat activation. • Choice C reason:

Shivering. This is incorrect because a newborn under a radiant heat warmer will not shiver, but shivering is not the main mechanism of heat production in newborns. Shivering is an involuntary contraction of muscles that generates heat by increasing metabolism. Newborns have limited ability to shiver because of their immature nervous system and low muscle mass. They rely more on brown fat and increased metabolic rate to produce heat. • Choice D reason:

Cold stress. This is correct because a newborn under a radiant heat warmer will prevent cold stress, which is a condition where the newborn's body temperature drops below normal and causes adverse effects. Cold stress can impair oxygen delivery, increase acidosis, decrease blood glucose, and increase the risk of infection and bleeding. A radiant heat warmer provides a neutral thermal environment for the newborn and prevents heat loss by radiation.

: 1 : 2 : 3 : 4.

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Correct Answer is C

Explanation

The correct answer is c. Dehydration. A significantly indented anterior fontanelle in a newborn is most commonly a sign of dehydration.

Choice A reason:

Increased intracranial pressure: This statement is incorrect because increased intracranial pressure typically causes a bulging, not indented, fontanelle. Symptoms include irritability, vomiting, and a high-pitched cry.

Choice B reason:

Vernix caseosa: This statement is incorrect because vernix caseosa is a white, cheesy substance covering the skin of newborns, unrelated to fontanelle indentation. It serves as a protective layer for the baby’s skin.

Choice C reason:

Dehydration: This statement is correct. Dehydration in newborns can cause a sunken fontanelle due to the loss of fluid. Other signs include dry mouth, sunken eyes, and fewer wet diapers.

Choice D reason:

Cyanosis: This statement is incorrect because cyanosis refers to a bluish discoloration of the skin due to lack of oxygen, not related to fontanelle shape. It indicates issues with oxygenation or circulation.

A. immunizations for high-risk infants and children. B. screening for infants with developmental disorders. C. supplemental food supplies to low-income pregnant or breastfeeding women. D. well-child examinations for infants and children living at the poverty level.

Correct Answer is C

Explanation

Choice A reason:

This is incorrect because WIC does not provide immunizations for high-risk infants and children. Immunizations are provided by other health care services, which WIC may refer participants to.

Choice B reason:

This is incorrect because WIC does not screen for infants with developmental disorders. WIC provides nutrition education and referrals to other health and social services but does not diagnose or treat any medical conditions.

Choice C reason:

This is correct because WIC provides supplemental food supplies to low-income pregnant or breastfeeding women, as well as infants and children up to age 5 who are at nutritional risk. The food packages are designed to meet the special nutritional needs of the participants and include items such as fruits, vegetables, milk, cheese, cereal, bread, juice, peanut butter, eggs, and infant formula.

Choice D reason:

This is incorrect because WIC does not provide well-child examinations for infants and children living at the poverty level. WIC may refer participants to other health care services that provide such examinations but do not conduct them themselves.

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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

The nurse notices while holding him upright that a 1-day-old newborn has a significantly indented anterior fontanelle. She immediately brings it to the attention of the physician. What does this finding most likely indicate?

Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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