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 A
Explanation
The correct answer is A. Variable decelerations are due to umbilical cord compression.
A. Variable decelerations are often associated with umbilical cord compression. This compression can occur when the umbilical cord is briefly compressed or squeezed, leading to transient decreases in fetal heart rate.
B. Variable decelerations are not typically a result of the administration of IV narcotic analgesics. They are more commonly associated with cord compression or other factors affecting fetal oxygenation.
C. Variable decelerations are not generally caused by uteroplacental insufficiency. Uteroplacental insufficiency is more commonly associated with late decelerations.
D. Variable decelerations are not primarily related to fetal head compression. While head compression can cause certain types of decelerations, variable decelerations are specifically associated with umbilical cord compression.
Correct Answer is D
Explanation
A. Brownish vaginal discharge may indicate the presence of old blood or mucus and is not necessarily a cause for concern in the absence of other signs or symptoms.
B. Contractions occurring every 4 to 5 minutes are within the normal frequency range during the first stage of labor.
C. Pink mucoid vaginal discharge, also known as the "bloody show," is a common occurrence in early labor and is not typically a cause for immediate concern.
D. Contractions lasting 100 seconds are excessively long and are a cause for concern.
Prolonged contractions can lead to decreased uterine blood flow, impacting fetal oxygenation. Such prolonged contractions should be assessed and addressed promptly.
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