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 C
Explanation
Choice A (7) rationale: The nurse should not select 7 as the Apgar score because the newborn exhibited several positive signs at 5 minutes after birth, such as a heart rate of 130/min, a lusty cry with tactile stimulation, and flexed extremities, indicating good muscle tone and reflexes.
Choice B (8) rationale: Choice B can be eliminated as the correct answer because the newborn displayed more than just moderate signs of normal adaptation. With a heart rate of 130/min, a lusty cry with tactile stimulation, and flexed extremities, as well as acrocyanosis and a grimace when suctioned, the newborn shows excellent adaptation to extrauterine life.
Choice C (9) rationale: The nurse should select Choice C as the correct answer. At 5 minutes after birth, the newborn's Apgar score would be 9 because it exhibited good overall adaptation with a heart rate of 130/min, a lusty cry with tactile stimulation, flexed extremities, and some acrocyanosis and grimace when suctioned.
Choice D (10) rationale: Choice D (10) should be excluded as the correct answer since the newborn had acrocyanosis and a grimace when suctioned, which indicates some minor difficulty in adapting to the new environment.
Correct Answer is A
Explanation
Choice A rationale:
Supporting the infant during birth. The priority for the nurse in this situation is to ensure the safe delivery of the baby. By supporting the infant during birth, the nurse can help ensure that the baby is delivered safely and efficiently. This involves assisting the mother in pushing and guiding the baby's head and body as it emerges from the birth canal. The nurse should also be ready to catch the baby and provide immediate care, such as drying and stimulating the baby to breathe if necessary.
Choice B rationale
Preventing the perineum from tearing. While preventing perineal tearing is important, it is not the top priority in this rapidly progressing labor scenario. The immediate concern is the safe delivery of the baby, and if perineal tearing does occur, it can be addressed after the birth.
Choice C rationale
Cutting the umbilical cord. This action is necessary but not the top priority. After the baby is delivered, the nurse should clamp and cut the umbilical cord to separate the baby from the placenta. However, this can wait until the baby is fully delivered and breathing on their own.
Choice D rationale
Promoting delivery of the placenta. Again, while delivering the placenta is important to prevent postpartum haemorrhage, it is not the priority in this scenario. The nurse's immediate focus should be on supporting the infant's delivery and ensuring the baby's well-being.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.