Before applying a cord clamp, the nurse assesses the umbilical cord for vessels. The nurse expects to find: Select one:
Two arteries, one vein.
Two veins, one artery.
Two veins, two arteries.
One artery, one vein.
The Correct Answer is A
Choice A Reason: Two arteries, one vein. This is because two arteries and one vein are the normal components of the umbilical cord, which is a structure that connects the fetus to the placenta and provides blood circulation between them. The umbilical cord carries oxygenated blood from the placenta to the fetus through the umbilical vein, and deoxygenated blood from the fetus to the placenta through the umbilical arteries.
Choice B Reason: Two veins, one artery. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
Choice C Reason: Two veins, two arteries. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as double umbilical vein (DUV). DUV is a condition where there are two umbilical veins instead of one, which can increase blood flow and oxygen delivery to the fetus. DUV can be associated with fetal overgrowth or polycythemia in some cases.
Choice D Reason: One artery, one vein. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is also known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: Frequent voiding encourages sphincter control. This is an incorrect statement that has no relevance to labor and delivery. Sphincter control refers to the ability to contract and relax the muscles that control urination and defecation. It is not affected by frequent voiding.
Choice B Reason: A full bladder impedes oxygen flow to the fetus. This is an incorrect statement that confuses a full bladder with a prolapsed cord. A prolapsed cord is a condition where the umbilical cord slips through the cervix before the baby and becomes compressed by the fetal head, which can reduce oxygen flow to the fetus. A full bladder does not affect oxygen flow to the fetus.
Choice C Reason: Frequent voiding prevents bruising of the bladder. This is an incorrect statement that exaggerates the effect of a full bladder on the bladder wall. A full bladder may cause some pressure or discomfort on the bladder, but it does not cause bruising or damage.
Choice D Reason: A full bladder can impede fetal descent. This is a correct statement that explains why it is important for the nurse to assess the bladder regularly and encourage the laboring client to void every 2 hours.

Correct Answer is B
Explanation
Choice A Reason: Shoulder dystocia. This is an incorrect answer that describes a different obstetric complication. Shoulder dystocia is a condition where the baby's shoulder gets stuck behind the mother's pubic bone during delivery, which can cause nerve injury, fracture, or asphyxia to the baby. Shoulder dystocia does not cause fetal bradycardia, abdominal pain, or vaginal bleeding.
Choice B Reason: Placental abruption. This is a correct answer that explains the symptoms of fetal bradycardia, abdominal pain, and vaginal bleeding in a woman with a history of crack cocaine use. Placental abruption. This is because placental abruption is a condition where the placenta separates from the uterine wall before delivery, which can cause fetal distress, maternal hemorrhage, and shock. Placental abruption can be triggered by maternal hypertension, trauma, or substance abuse, such as crack cocaine.
Choice C Reason: Anaphylactoid syndrome of pregnancy. This is an incorrect answer that refers to a rare and fatal condition also known as amniotic fluid embolism. Anaphylactoid syndrome of pregnancy is a condition where amniotic fluid enters into the maternal bloodstream and causes an allergic reaction, which can lead to respiratory failure, cardiac arrest, coagulopathy, and coma. Anaphylactoid syndrome of pregnancy does not cause fetal bradycardia or vaginal bleeding.
Choice D Reason: Placenta previa. This is an incorrect answer that indicates another placental disorder. Placenta previa is a condition where the placenta covers or is near the cervix, which can cause painless bright red bleeding during pregnancy or labor. Placenta previa does not cause fetal bradycardia or abdominal pain.

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