A nurse is caring for a newborn who is placed in a neutral thermal environment.What is the desired outcome of this measure?
To minimize the patient’s oxygen needs.
To facilitate the conversion of glucose to lactic acid.
To decrease the absorption of surfactant from the alveoli.
To increase the patient’s ability to metabolize brown fat stores.
The Correct Answer is A
The correct answer is choice A: To minimize the patient’s oxygen needs.
A neutral thermal environment is an environment in which a neonate maintains a normal body temperature while minimizing energy expenditure and oxygen consumption. This is important for the wellbeing of neonates, especially those who are preterm or have respiratory insufficiency.
Choice B is wrong because the conversion of glucose to lactic acid is not a desired outcome of a neutral thermal environment. This conversion occurs when there is inadequate oxygen supply to the tissues, resulting in anaerobic metabolism and metabolic acidosis.
Choice C is wrong because the absorption of surfactant from the alveoli is not affected by a neutral thermal environment.
Surfactant is a substance that reduces surface tension and prevents alveolar collapse. It is produced by type II alveolar cells and secreted into the alveoli.
Choice D is wrong because the metabolism of brown fat stores is not a desired outcome of a neutral thermal environment.
Brown fat is a specialized tissue that generates heat by nonshivering thermogenesis in response to cold stress.
It is located in the nape of the neck, between the scapulae, and around the kidneys and adrenals. It increases the metabolic rate and oxygen consumption of neonates.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Braxton Hicks contractions are irregular, painless uterine contractions that occur throughout pregnancy, but are more noticeable in the third trimester.They do not indicate labor, but rather help in softening and ripening the cervix.
Choice A is wrong because the patient does not need to time the contractions unless they become regular, painful, and closer together, which are signs of true labor.
Choice B is wrong because documenting fetal activity daily is not related to Braxton Hicks contractions.Fetal activity is monitored to assess fetal well-being and detect any signs of fetal distress.
Choice C is wrong because losing the mucus plug is also not related to Braxton Hicks contractions.The mucus plug is a thick plug of mucus that seals the cervical canal during pregnancy and may be expelled before or during labor.
Correct Answer is B
Explanation
The correct answer is choice B.“The placenta was blocking the opening of the womb.”
This statement shows that the patient understands that placenta previa is a condition where the placenta covers or is near the internal os of the cervix, which prevents a safe vaginal delivery.The patient would need a cesarean delivery to avoid bleeding and complications.
Choice A is wrong because it describes placental abruption, not placenta previa.
Placental abruption is when the placenta separates from the uterine wall before delivery, which can cause severe bleeding and fetal distress.
Choice C is wrong because it describes a normal position of the placenta at the top of the womb.
This does not interfere with vaginal delivery and does not cause bleeding.
Choice D is wrong because it describes placenta increta or percreta, not placenta previa.
Placenta increta or percreta is when the placenta grows too deeply into or through the uterine wall, which can cause severe bleeding and damage to the uterus and other organs.
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