What is the purpose of placing a newborn under a radiant heat warmer after birth?
To prevent basal metabolic rate reduction.
To stimulate brown fat production.
To maintain body temperature.
To prevent hypothermia.
The Correct Answer is C
Choice A rationale
Placing a newborn under a radiant heat warmer after birth does not directly prevent basal metabolic rate reduction. The primary function of a radiant heat warmer is to maintain the newborn’s body temperature and prevent hypothermia.
Choice B rationale
While brown fat production is a mechanism used by newborns to generate heat, placing a newborn under a radiant heat warmer does not stimulate brown fat production.
Choice C rationale
The primary purpose of placing a newborn under a radiant heat warmer after birth is to maintain the newborn’s body temperature. Newborns can lose heat rapidly, as they have a
large surface area compared to their body weight. The radiant heat warmer provides a controlled environment that helps maintain the newborn’s body temperature.
Choice D rationale
Preventing hypothermia is a key reason for placing a newborn under a radiant heat warmer. However, the direct purpose of the warmer is to maintain the newborn’s body temperature.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale: Uteroplacental insufficiency causes late decelerations due to reduced oxygenation, not mechanical pressure. It reflects placental dysfunction, not direct cranial compression effects.
Choice B rationale: Spontaneous rupture of membranes increases infection and labor risk but does not directly alter cerebral perfusion or trigger vagal responses linked to head compression.
Choice C rationale: Altered fetal cerebral blood flow results from cranial pressure during contractions, triggering vagal stimulation and early decelerations. This is the physiological response to head compression.
Choice D rationale: Umbilical cord compression causes variable decelerations due to transient blood flow obstruction, unrelated to cranial pressure or cerebral perfusion changes.
Correct Answer is ["B","E"]
Explanation
Choice A rationale
Abundant lanugo, which is fine hair, is not typically seen in postmature babies. It is more common in babies who are born prematurely.
Choice B rationale
A positive Moro reflex is a normal finding in newborns, including those who are postmature, indicating a healthy neurological response.
Choice C rationale
Vernix, a white creamy substance that protects the baby’s skin in the womb, is usually absent or very scant in postmature babies.
Choice D rationale
Short, soft fingernails are not a specific sign of postmaturity. Newborns’ fingernails can vary, and they often grow quickly after birth.
Choice E rationale
Cracked, peeling skin is commonly seen in postmature babies. Their skin can often appear dry and wrinkled.
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