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 B
Explanation
The correct answer is choice B: The risk of transplacental transmission of chlamydia between mother and baby is low.This means that the infection is unlikely to pass from the mother’s blood to the baby’s blood through the placenta.However, this does not mean that the infection is harmless for the baby.
Choice A is wrong because transmission of chlamydia usually occurs when the baby passes through the vagina.This can cause eye infections or pneumonia in the newborn.
Choice C is wrong because the baby has probably not developed antibodies to the chlamydia in utero.Antibodies are proteins that help fight infections, and they are usually passed from the mother to the baby through the placenta.However, chlamydia does not stimulate a strong antibody response in the mother, so there is little protection for the baby.
Choice D is wrong because the baby will not receive systemic treatment at birth to prevent a chlamydia infection.Systemic treatment means medication that affects the whole body, such as oral or intravenous antibiotics.The baby will only receive topical treatment, such as eye drops or ointment, to prevent eye infections.Normal ranges: Chlamydia infection is common among pregnant women, especially those under 25 years old or with risk factors such as multiple or new sexual partners.The prevalence of chlamydia among pregnant women in the United States ranges from 1% to 40%, depending on the population and screening methods.Chlamydia infection can be diagnosed by urine or swab tests, and treated with antibiotics such as azithromycin or doxycycline.Chlamydia screening is recommended for all pregnant women at their first prenatal visit and again in the third trimester if they are at high risk.
Correct Answer is A
Explanation
The correct answer is choice B. Test the patient’s vaginal secretions with nitrazine paper.
This is because the patient may be leaking amniotic fluid rather than urine, and nitrazine paper can help differentiate between the two by testing the pH level.Amniotic fluid is alkaline and will turn the paper blue, while urine is acidic and will turn the paper yellow.
Choice A is wrong because checking the patient’s bladder for distention will not help determine if the patient is leaking amniotic fluid or urine.
Choice C is wrong because checking the patient’s urine for glucose content will not help determine if the patient is leaking amniotic fluid or urine.
Glucose content may be elevated in patients with gestational diabetes, but this is not related to the patient’s complaint.
Choice D is wrong because obtaining a specimen of the patient’s vaginal secretions for culture will not help determine if the patient is leaking amniotic fluid or urine.
Culture may be done to check for infections, but this is not the initial action that the nurse should take.
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