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A nurse is caring for a newborn. How many blood vessels should the nurse expect to observe in the newborn's umbilical cord?

A. Two arteries and two veins.

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.

B. One artery and one vein.

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.

C. Two arteries and one vein.

This is the correct answer. The umbilical cord usually contains two arteries and one vein. The presence of two arteries allows for 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.

D. Two veins and one artery.

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 the fetal circulation and hinder proper nutrient and waste exchange between the fetus and placenta.

This question is an excerpt from Nurse Dive's nursing test bank - ATI PN Maternity Proctored Exam. Take the full exam now


Full Explanation

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. 


Similar Questions

QUESTION

A nurse is reinforcing teaching with a newly licensed nurse about a biophysical profile. Which of the following information should the nurse include in the teaching?

A. This test determines the estimated date of birth.

It is not used to determine the estimated date of birth, as that is typically calculated based on the first day of the last menstrual period and confirmed or adjusted by early ultrasounds.

B. The client will need to be NPO for 8 hr prior to the test.

The test also does not require the client to be NPO (nothing by mouth) for 8 hours prior to the test. This restriction is commonly associated with certain medical procedures, but it is not applicable to the biophysical profile

C. The nurse will initiate an IV prior to this test.

There is no need to initiate an IV (intravenous line) before the biophysical profile (Choice C). The test is non-invasive and involves the use of ultrasound and fetal heart rate monitoring. The biophysical profile assesses several fetal parameters, such as fetal movement, fetal tone, fetal breathing movements, amniotic fluid volume, and fetal heart rate. These parameters help evaluate the well-being and health of the baby. The test is often recommended in cases of high-risk pregnancies, decreased fetal movement, or other conditions that may warrant closer monitoring of the baby's condition. By knowing that the biophysical profile predicts fetal well-being in the third trimester, the nurse can provide accurate information to the client, reassuring them about the health of their baby and explaining the importance of the test in ensuring a safe delivery and healthy outcome.

D. The test predicts fetal well-being in the third trimester.

The biophysical profile is a prenatal test used to assess fetal well-being in the third trimester of pregnancy. It is not used to determine the estimated date of birth (Choice A), as that is typically calculated based on the first day of the last menstrual period and confirmed or adjusted by early ultrasounds.

Full Explanation

Choice D rationale: 

The correct answer is Choice D. The biophysical profile is a prenatal test  used to assess fetal well-being in the third trimester of pregnancy. It is not used to determine  the estimated date of birth (Choice A), as that is typically calculated based on the first day of  the last menstrual period and confirmed or adjusted by early ultrasounds. 

The test also does  not require the client to be NPO (nothing by mouth) for 8 hours prior to the test (Choice B). This restriction is commonly associated with certain medical procedures, but it is not  applicable to the biophysical profile.

Furthermore, there is no need to initiate an IV  (intravenous line) before the biophysical profile (Choice C). The test is non-invasive and  involves the use of ultrasound and fetal heart rate monitoring. The biophysical profile  assesses several fetal parameters, such as fetal movement, fetal tone, fetal breathing  movements, amniotic fluid volume, and the fetal heart rate. These parameters help evaluate  the well-being and health of the baby. The test is often recommended in cases of high-risk  pregnancies, decreased fetal movement, or other conditions that may warrant closer  monitoring of the baby's condition. By knowing that the biophysical profile predicts fetal  well-being in the third trimester, the nurse can provide accurate information to the client,  reassuring them about the health of their baby and explaining the importance of the test in  ensuring a safe delivery and healthy outcome. 

QUESTION

A nurse is assisting in the care of a client who is in the second stage of labor. Which of the following findings should the nurse report to the provider?

A. Early decelerations in the FHR.

 Early decelerations in the FHR are usually not a concern during the second stage of labor. They are a normal physiological response to the compression of the fetal head during contractions and are generally considered benign.  

B. Pelvic pressure with contractions.

 Pelvic pressure with contractions is a normal finding during the second stage of labor as the baby descends into the pelvis. It does not typically require reporting to the provider unless it is associated with other concerning symptoms.  

C. Bloody show from the vagina.

A bloody show from the vagina is a common and expected finding during the second stage of labor. It indicates that the cervix is dilating and effacing, which is a normal part of the labor process.  

D. Uterine contraction lasting 2 min.

A uterine contraction lasting 2 minutes is abnormal and could indicate uterine tachysystole, which can lead to fetal distress due to reduced uterine blood flow and oxygen to the fetus. This finding should be reported to the provider immediately.

Full Explanation

 

The correct answer is choice D. Uterine contraction lasting 2 min.

 

Choice A rationale:

 Early decelerations in the FHR are usually not a concern during the second stage of labor. They are a normal physiological response to the compression of the fetal head during contractions and are generally considered benign.

 

Choice B rationale:

 Pelvic pressure with contractions is a normal finding during the second stage of labor as the baby descends into the pelvis. It does not typically require reporting to the provider unless it is associated with other concerning symptoms.

 

Choice C rationale:

 A bloody show from the vagina is a common and expected finding during the second stage of labor. It indicates that the cervix is dilating and effacing, which is a normal part of the labor process.

 

Choice D rationale:

 A uterine contraction lasting 2 minutes is abnormal and could indicate uterine tachysystole, which can lead to fetal distress due to reduced uterine blood flow and oxygen to the fetus. This finding should be reported to the provider immediately.

QUESTION

A nurse is assisting with the care of a client who is in labour and has an external electronic fetal monitor. The nurse observes that the fetal heart rate begins to decelerate after the contraction has started, with the lowest point of the deceleration occurring after the peak of the contraction. Which of the following actions should the nurse take first?

A. Increase the rate of the maintenance IV infusion.

Increasing the rate of the maintenance IV infusion may be a rationaleable action in some situations, but it is not the first priority when dealing with a fetal heart rate deceleration. The priority is to address the deceleration and potential fetal distress promptly.

B. Administer oxygen using a nonrebreather mask.

Administering oxygen using a nonrebreather mask might be beneficial for the client, but it is not the primary action to take when dealing with fetal heart rate deceleration. The priority is to address the deceleration and ensure fetal well-being.

C. Elevate the client's legs.

Elevating the client's legs is unlikely to have a significant impact on fetal heart rate deceleration. This action is more relevant in cases of maternal hypotension or when trying to improve venous return to the heart. It is not the first-line intervention for fetal heart rate decelerations.

D. Place the client in the lateral position.

Placing the client in the lateral (side-lying) position is the correct action to take first. This position can help relieve pressure on the vena cava, improve blood flow, and increase oxygen supply to the fetus. By changing the client's position, the nurse can potentially resolve the fetal heart rate deceleration and improve fetal well-being.

Full Explanation

Choice A rationale: 

Increasing the rate of the maintenance IV infusion may be a rational action in some situations, but it is not the first priority when dealing with a fetal heart rate deceleration. The priority is to address the deceleration and potential fetal distress promptly. 

Choice B rationale: 

Administering oxygen using a nonrebreather mask might be beneficial for the client, but it is not the primary action to take when dealing with fetal heart rate deceleration. The priority is to address the deceleration and ensure fetal well-being. 

Choice C rationale: 

Elevating the client's legs is unlikely to have a significant impact on fetal heart rate deceleration. This action is more relevant in cases of maternal hypotension or when trying to improve venous return to the heart. It is not the first-line intervention for fetal heart rate decelerations. 

Choice D rationale: 

Placing the client in the lateral (side-lying) position is the correct action to take first. This position can help relieve pressure on the vena cava, improve blood flow, and increase oxygen supply to the fetus. By changing the client's position, the nurse can potentially resolve the fetal heart rate deceleration and improve fetal well-being.