The nursing instructor is illustrating the circulatory flow between the mother and fetus.
The instructor determines the session is successful when the class correctly chooses which structure with which route.
The one umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The two umbilical arteries carry waste products from the placenta to the fetus.
The two umbilical veins carry waste products from the fetus to the placenta.
The one umbilical artery carries oxygen-rich blood to the fetus from the placenta.
The Correct Answer is A
The umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The umbilical vein is an important part of fetal circulation and carries oxygenated blood from the placenta into the growing fetus.
Choice B is incorrect because the two umbilical arteries carry deoxygenated blood from the fetus to the placenta23.
Choice C is incorrect because there are not two umbilical veins, but only one12.
Choice D is incorrect because it is not the one umbilical artery that carries oxygen-rich blood to the fetus from the placenta, but rather the one umbilical vein14.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
In patients with Duchenne muscular dystrophy (DMD), creatine kinase levels are often increased to levels that are 50-100 times the reference range.
Choice A is incorrect because lactate dehydrogenase is not typically elevated in DMD.
Choice B is incorrect because C-reactive protein is not typically elevated in DMD.
Choice C is incorrect because the erythrocyte sedimentation rate is not typically elevated in DMD.
Correct Answer is A
Explanation
This is a sign of uterine hyperstimulation, which can cause fetal distress and excessive bleeding12.
The nurse should report this finding to the provider and monitor the fetal heart rate and maternal vital signs.
Choice B.
Early decelerations in the FHR are incorrect, as this is a normal finding during the second stage of labor, indicating head compression.
Choice C.
Pelvic pressure with contractions is incorrect, as this is an expected finding during the second stage of labor, indicating that the baby is descending through the birth canal.
Choice D.
Bloody show from the vagina is incorrect, as this is also an expected finding during the second stage of labor, indicating cervical dilation and effacement13.
Therefore, choice A is the best answer.
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