The parents of a 30-week preterm infant ask the nurse why the baby can get cold so easily. The nurse explains:
Preterm neonates shiver to retain heat.
Preterm neonates lie in a fetal position.
Preterm neonates’ blood vessels are deeper under the surface of their skin.
Preterm neonates have minimal body fat to retain body heat.
The Correct Answer is D
Choice A rationale
Preterm neonates lack developed mechanisms to shiver for thermogenesis, relying instead on non-shivering thermogenesis primarily through brown fat metabolism, which is underdeveloped in preterm infants.
Choice B rationale
The fetal position does not significantly affect heat retention in preterm neonates, as their thermoregulatory mechanisms depend on adequate fat stores and skin coverage.
Choice C rationale
Blood vessels in preterm neonates are closer to the skin's surface, increasing heat loss due to greater exposure and lack of insulating subcutaneous fat.
Choice D rationale
Preterm neonates have minimal body fat, impeding insulation and heat retention, leading to rapid heat loss, necessitating external warming measures like incubators or radiant warmers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
A soft fundus indicates uterine atony, an abnormal finding requiring immediate intervention. This teaching would lead to improper patient monitoring of complications such as hemorrhage.
Choice B rationale
Clots as large as a golf ball are not considered normal and may signal uterine atony or retained placental fragments, which necessitate medical intervention for hemorrhage risk.
Choice C rationale
Decreased brownish-red lochia may reflect normal postpartum changes as it progresses to serosa and alba but is not typically an indicator of complications.
Choice D rationale
Increased lochia or a return to bright red bleeding signals potential complications like subinvolution or late postpartum hemorrhage, which demand prompt medical attention.
Correct Answer is A
Explanation
Choice A rationale
Urine output of 40 mL in 8 hours indicates oliguria, suggesting inadequate renal perfusion. Normal urine output is 30 mL/hour or greater. This could signify hypovolemia or renal compromise post-hemorrhage.
Choice B rationale
A drop in hematocrit of 2% may be expected postpartum and is not immediately concerning unless accompanied by hemodynamic instability or symptoms of anemia like dizziness or fatigue.
Choice C rationale
A 2 lb weight decrease postpartum is normal due to fluid shifts and diuresis. It does not indicate an emergent condition requiring immediate reporting to the obstetrician.
Choice D rationale
A pulse rate of 68 beats per minute is within the normal adult range of 60 to 100 beats per minute and is not typically concerning post-delivery.
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