The nursing instructor is illustrating the circulatory flow between the mother and fetus.
The instructor determines the session is successful when the class correctly chooses which structure with which route.
The one umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The two umbilical arteries carry waste products from the placenta to the fetus.
The two umbilical veins carry waste products from the fetus to the placenta.
The one umbilical artery carries oxygen-rich blood to the fetus from the placenta.
The Correct Answer is A
The umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The umbilical vein is an important part of fetal circulation and carries oxygenated blood from the placenta into the growing fetus.
Choice B is incorrect because the two umbilical arteries carry deoxygenated blood from the fetus to the placenta23.
Choice C is incorrect because there are not two umbilical veins, but only one12.
Choice D is incorrect because it is not the one umbilical artery that carries oxygen-rich blood to the fetus from the placenta, but rather the one umbilical vein14.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is a. Positive Moro reflex.
Choice A reason:
Positive Moro reflex: This reflex should disappear by 6 months of age. Its presence at 9 months indicates potential neurological issues.
Choice B reason:
Negative Doll’s eye reflex: This reflex, indicating brainstem function, should be positive in infants. A negative result suggests severe brainstem dysfunction
Choice C reason:
Positive Babinski reflex: This reflex is normal up to 2 years of age. It indicates normal neurological development in infants.
Choice D reason:
Negative Crawl reflex: Crawling typically develops between 6-10 months. A negative crawl reflex at 9 months could indicate developmental delays
Correct Answer is D
Explanation
“You should place your baby on her back when sleeping to decrease the risk of SIDS.” According to Mayo Clinic, placing a baby on their back to sleep is one of the most important measures that can be taken to help protect a child from SIDS1.
Choice A is incorrect because there is no evidence that SIDS is directly correlated to diphtheria, tetanus, and pertussis vaccines.
Choice B is incorrect because SIDS rates have actually decreased dramatically since the American Academy of Pediatrics issued its safe sleep recommendations in 19922.
Choice C is incorrect because while sleep apnea may contribute to breathing problems, it is not considered the main cause of SIDS1.
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