A nurse in labor and delivery is caring for a client. Following delivery of the placenta, the nurse examines the umbilical cord. Which of the following vessels should the nurse expect to observe in the umbilical cord?
Two arteries and one vein
Two veins and one artery
One artery and one vein
Two arteries and two veins
The Correct Answer is A
The correct answer is A. Two arteries and one vein.
A. Two arteries and one vein is the typical composition of the umbilical cord vessels. The umbilical arteries carry deoxygenated blood and waste products away from the fetus, while the umbilical vein carries oxygenated blood and nutrients to the fetus.
B. Two veins and one artery is not the usual configuration of the umbilical cord vessels. The presence of two veins is atypical.
C. One artery and one vein is an abnormal finding and may be associated with certain congenital anomalies or fetal abnormalities. This configuration is not the norm.
D. Two arteries and two veins is not a standard or physiological composition of the umbilical cord. The typical configuration is two arteries and one vein.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Contractions that last 45 seconds each with a 3-minute rest between contractions are less common. Typically, contractions last around 60 seconds during active labor.
B. Contractions that last for 60 seconds each with a 3-min rest between contractions is the expected pattern.
During active labor, contractions are commonly around 60 seconds in duration, and they occur approximately every 4-5 minutes.
C. Contractions that last for 60 seconds each with a 4-min rest between contractions are not consistent with the usual pattern of contractions in active labor. A 4-minute rest between contractions would be an extended interval.
D. A contraction that lasts for 4 minutes followed by a period of relaxation is not typical and may indicate a problem. Normal contractions usually last around 60 seconds or less.
Correct Answer is C
Explanation
The correct answer is C.
A. Calcium: While calcium is important for bone health, it is not specifically increased during early pregnancy. Adequate calcium intake is important throughout pregnancy, but the focus on increased intake typically occurs later in pregnancy to support fetal bone development.
B. Vitamin E: Vitamin E is important for overall health, but there is not a specific emphasis on increasing vitamin E intake in the early stages of pregnancy. It is generally included as part of a balanced diet.
C. Iron: This is the correct answer. Iron needs increase during pregnancy to support the increased blood volume and prevent iron-deficiency anemia. Adequate iron is crucial for the transport of oxygen to the developing fetus.
D. Vitamin D: While vitamin D is important for bone health and immune function, its increase is not specific to the early stages of pregnancy. Adequate vitamin D intake is essential throughout pregnancy, but it is not singled out as needing a significant increase at 8 weeks of gestation.
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