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.

Answer and Explanation

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.

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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.

A. Vitamin K decreases the newborn's risk of jaundice. B. Vitamin K decreases the newborn's risk of health care-associated infections. C. Vitamin K decreases the newborn's risk of hemorrhagic disorders. D. Vitamin K decreases the newborn's risk of complications from the Hepatitis B vaccine.

Correct Answer is C

Explanation

Choice A rationale :

Vitamin K decreases the newborn's risk of jaundice. Rationale: This statement is incorrect. Vitamin K plays no direct role in reducing the risk of jaundice in newborns. Jaundice is primarily caused by the accumulation of bilirubin in the blood, which is a different issue than hemorrhagic disorders.

Choice B rationale

Vitamin K decreases the newborn's risk of healthcare-associated infections. Rationale: This statement is incorrect. Vitamin K is not related to reducing the risk of healthcare-associated infections. Its main function is related to blood clotting and preventing hemorrhagic disorders.

Choice C rationale

Vitamin K decreases the newborn's risk of hemorrhagic disorders. Rationale: This statement is correct. Vitamin K is essential for the production of clotting factors in the blood, which helps prevent bleeding or hemorrhagic disorders in newborns. Newborns are born with low levels of vitamin K, so administering a vitamin K injection at birth is a common practice to prevent potential bleeding issues.

Choice D rationale

Vitamin K decreases the newborn's risk of complications from the Hepatitis B vaccine. Rationale: This statement is incorrect. Vitamin K is not directly related to reducing the risk of complications from the Hepatitis B vaccine. The vaccine is designed to protect against Hepatitis B infection, and vitamin K is not involved in its efficacy or safety.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assisting with the care of a client who presents to a labor and delivery unit with rapidly progressing labor. Which of the following actions is the priority for the nurse to take?

Correct Answer is A

Explanation

A nurse reinforcing teaching about vitamin K with a client who is postpartum. Which of the following statements should the nurse include?

Correct Answer is C

Explanation

When contributing to the plan of care for the 4th stage of labor, the nurse should recognize the client is at the greatest risk of developing which of the following complications?

A nurse is caring for a client who is at 36 weeks of gestation and has suspected placenta previa. For which of the following findings should the nurse monitor the client?

A nurse is preparing to administer vitamin K 1 mg IM to a newborn. Available is vitamin K injection 1 mg/0.5 mL. How many mL should the nurse administer per dose?

A nurse is assisting with the care of a newborn following a vaginal delivery. Which of the following actions should the nurse perform first?

A nurse is assisting with the care of a client who is at 37 weeks of gestation and has placenta previa. Which of the following risks is the primary rationale the nurse should avoid performing a pelvic examination?

A nurse is admitting a client who is at 36 weeks gestation and has painless, bright red vaginal bleeding. The nurse recognizes this finding as an indication of which of the following conditions?

A nurse in a provider's office is reinforcing teaching about home care with a client who has mild preeclampsia. Which of the following information should the nurse include in the teaching?