A nurse is caring for a newborn. How many blood vessels should the nurse expect to observe in the newborn's umbilical cord?
Two arteries and two veins.
One artery and one vein.
Two arteries and one vein.
Two veins and one artery.
The Correct Answer is C
Choice A rationale:
The umbilical cord typically contains two arteries and one vein. Arteries carry oxygen-depleted blood and waste products from the fetus to the placenta for removal, while the vein carries oxygenated blood and nutrients from the placenta to the fetus. This arrangement is essential for maintaining proper fetal circulation during pregnancy.
Choice B rationale:
This choice is incorrect because the umbilical cord usually contains two arteries and one vein, not just one artery and one vein. Having only one artery could indicate a potential vascular abnormality or congenital issue that may require further investigation or medical attention.
Choice C rationale:
This is the correct answer. The umbilical cord usually contains two arteries and one vein. The presence of two arteries allows for the efficient removal of waste products and carbon dioxide from the fetus, while the single vein delivers essential nutrients and oxygen to support the baby's growth and development.
Choice D rationale:
This choice is incorrect as it states two veins and one artery, which is not the typical configuration of blood vessels in the umbilical cord. Having two veins and one artery would disrupt fetal circulation and hinder proper nutrient and waste exchange between the fetus and the placenta.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B. Assure the client that the score is within the expected range.
Choice A rationale:
Administering oxygen and notifying the provider is not necessary for a biophysical profile (BPP) score of 10. A score of 10 indicates that the fetus is well-oxygenated and there are no signs of distress.
Choice B rationale:
A BPP score of 10 is considered normal and reassuring, indicating that the fetus is well-oxygenated and there are no signs of distress. Therefore, the nurse should assure the client that the score is within the expected range.
Choice C rationale:
Offering the client orange juice and repeating the assessment in 1 hour is not necessary for a BPP score of 10. This action might be considered if the score were lower and there was a need to reassess fetal well-being.
Choice D rationale:
Assisting the client into a side-lying position is not required for a BPP score of 10. This position is typically recommended to improve uteroplacental blood flow in cases of fetal distress or lower BPP scores.
Correct Answer is D
Explanation
Choice A rationale:
Vaginal hematoma is not a common complication in the 4th stage of labor. This stage primarily involves the recovery and stabilization of the mother after delivery.
Choice B rationale:
Hypoglycemia is not a typical complication in the 4th stage of labor. While blood glucose levels might be monitored during labor, the risk of hypoglycemia is generally higher in neonates, especially if the mother has diabetes.
Choice C rationale:
Chorioamnionitis is an infection of the fetal membranes and amniotic fluid, typically diagnosed during labor or shortly after delivery. It is not specific to the 4th stage of labor.
Choice D rationale:
Uterine hemorrhage is the most significant concern during the 4th stage of labor, also known as the "postpartum”. or "recovery”. stage. It refers to excessive bleeding from the site where the placenta detached. This bleeding can be life-threatening if not managed promptly.
Choice E rationale:
Dehiscence is the separation of surgical incisions, which is not a common complication during the 4th stage of labor.
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