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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Rubella immunization should be given in the early postpartum period.This is because rubella infection during pregnancy can cause serious birth defects or miscarriage, and rubella vaccine is contraindicated during pregnancy.Therefore, the best time to vaccinate a woman who is not immune to rubella is after she delivers her baby.
Choice B is wrong because gamma globulin is not effective for preventing rubella infection or congenital rubella syndrome (CRS).Gamma globulin is a preparation of antibodies that can provide temporary protection against some infections, but it does not induce lasting immunity.
Choice C is wrong because gamma globulin should not be given at the next visit for the same reason as choice B.Moreover, gamma globulin can interfere with the response to live vaccines such as rubella vaccine, so it should not be given within 3 months before or after vaccination.
Choice D is wrong because rubella immunization should not be given at the next visit or during pregnancy, as it can pose a risk to the fetus.Rubella vaccine is a live attenuated virus vaccine that can cross the placenta and infect the fetus.The risk of CRS from vaccination during pregnancy is low, but it cannot be ruled out completely.Therefore, women who receive rubella vaccine should avoid pregnancy for at least 4 weeks after vaccination.
Correct Answer is A
Explanation
The correct answer is choice A. The newborn’s nostrils flare slightly during respiration.This is a sign of respiratory distress in a newborn.
Flaring nostrils indicate that the newborn is working hard to breathe and may not be getting enough oxygen.
Choice B is wrong because the newborn’s hands and feet are blue and feel cool.This is a normal finding called acrocyanosis, which occurs due to immature peripheral circulation.
It usually resolves within 24 to 48 hours after birth.
Choice C is wrong because the newborn’s eyes move randomly when his head is turned to the side.This is a normal finding called nystagmus, which occurs due to immature eye muscles and coordination.
It usually disappears by 6 months of age.
Choice D is wrong because the newborn’s tongue thrusts forward when it is lightly touched.This is a normal finding called the extrusion reflex, which helps the newborn to suck and swallow.
It usually fades by 4 months of age.
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