The nurse caring for an infant at risk for hypothermia knows that the function of brown adipose tissue (BAT) in a newborn is what?
Insulating the body against lowered environmental temperatures.
Protection for the infant from birth injuries.
Being available to be metabolized by body when heat is needed.
Providing a ready source of calories for the newborn.
The Correct Answer is C
A. BAT does not primarily act as insulation but as a heat source.
B. BAT is unrelated to protection from birth injuries.
C. Brown adipose tissue (BAT) is metabolized to generate heat through non-shivering thermogenesis, which is critical for newborns as they cannot shiver effectively.
D. While BAT does provide some energy, its main purpose is heat production, not calorie storage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Post-term infants typically have decreased vernix.
B. Post-term infants may have reduced subcutaneous fat, not increased.
C. Post-term infants (>42 weeks) often have dry, cracked, peeling skin due to reduced vernix and prolonged exposure to amniotic fluid.
D. Post-term infants usually have abundant scalp hair.
Correct Answer is ["A","C","D"]
Explanation
A. Tachycardia: A compensatory response to cold stress as the infant tries to generate heat.
B. Shivering: Rare in newborns due to immature thermoregulation; not a common finding.
C. Hypoglycemia: Cold stress increases glucose consumption, risking hypoglycemia.
D. Lethargy: A late sign indicating worsening cold stress and potential hypothermia.
E. Hypertonia: Unrelated to cold stress, which more commonly causes hypotonia.
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