A nurse in labor and delivery is caring for a client. Following the 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?
One artery and one vein.
Two veins and one artery.
Two arteries and two veins.
Two arteries and one vein.
The Correct Answer is D
Choice A rationale
The umbilical cord typically contains two arteries and one vein, not one artery and one vein. The umbilical arteries carry deoxygenated blood from the fetus to the placenta, while the umbilical vein carries oxygenated blood from the placenta to the fetus.
Choice B rationale
The umbilical cord typically contains two arteries and one vein, not two veins and one artery. The umbilical arteries carry deoxygenated blood from the fetus to the placenta, while the umbilical vein carries oxygenated blood from the placenta to the fetus.
Choice C rationale
The umbilical cord typically contains two arteries and one vein, not two arteries and two veins. The umbilical arteries carry deoxygenated blood from the fetus to the placenta, while the umbilical vein carries oxygenated blood from the placenta to the fetus.
Choice D rationale
The umbilical cord typically contains two arteries and one vein. The umbilical arteries carry deoxygenated blood from the fetus to the placenta, while the umbilical vein carries oxygenated blood from the placenta to the fetus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Step 1 is to calculate the volume of betamethasone to be drawn up for each dose. The order is to administer betamethasone IM and to repeat the dose after 2 hours. Betamethasone is available as 4mg/mL. Therefore, to administer a dose of 12mg, the nurse would need to draw up 12mg ÷ 4mg/mL = 3mL for each dose.
Correct Answer is B
Explanation
Choice A rationale
While cigarette smoking can increase the risk of many complications during pregnancy, including placental abruption, it is not the most common risk factor. Smoking can cause constriction and damage to the blood vessels in the placenta, but other factors, such as hypertension, are more commonly associated with placental abruption.
Choice B rationale
Hypertension is the most common risk factor for placental abruption. High blood pressure can cause damage to the blood vessels in the placenta, leading to abruption. Chronic hypertension, gestational hypertension, and preeclampsia can all increase a woman’s risk of experiencing a placental abruption.
Choice C rationale
Blunt force trauma, such as that experienced in a car accident or a fall, can cause placental abruption, but it is not the most common risk factor. Any trauma to the abdomen during pregnancy should be evaluated by a healthcare provider to assess for potential complications, including placental abruption.
Choice D rationale
Cocaine use can increase the risk of placental abruption. Cocaine causes intense vasoconstriction, which can compromise the blood flow to the placenta and lead to abruption. However, it is not the most common risk factor for this condition.
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