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 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 D
Explanation
The correct answer is choice D. Insufficient relaxation of the uterus between contractions.This is also known astachysystoleorhyperstimulation, which can cause fetal distress and uterine rupture.Oxytocin is a hormone that stimulates uterine contractions, but it can also cause them to be too strong or too frequent if given in high doses or for too long.
Choice A is wrong because oxytocin does not decrease body temperature.
Choice B is wrong because oxytocin does not cause maternal cardiac arrhythmias.
Choice C is wrong because oxytocin does not cause urinary retention.
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