The nurse is reviewing fetal circulation with a pregnant patient and explains that blood circulates through the placenta to the fetus. What is the function of ductus arteriosus?
Select one:

Lungs bypass

Brain bypass

Liver bypass

Cardiac bypass

Answer and Explanation

The Correct Answer is A

a. The function of the ductus arteriosus is to bypass the lungs in fetal circulation, allowing oxygenated blood from the placenta to be shunted directly to systemic circulation.
b. Ductus arteriosus does not bypass the brain; it specifically bypasses the lungs.

c. Ductus venosus shunts blood away from the liver, not the ductus arteriosus.

d. Ductus arteriosus shunts blood away from the lungs, not the heart itself.

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Correct Answer is D

Explanation

a. Ectopic pregnancy occurs outside the uterus, so uterine enlargement is not expected.
b. Vaginal bleeding may occur but is not specific to ectopic pregnancy.
c. These symptoms are nonspecific and can occur in various conditions, including ectopic pregnancy, but they are not specific to it.
d. This is a classic symptom of ectopic pregnancy and occurs due to the stretching of the fallopian tube or rupture.

A. Posterior B. Breech C. Cephalic D. Oblique. E. Transverse

Correct Answer is B

Explanation

a. A posterior presentation is when the fetus's back is toward the mother's back, and the fetal heart tones are usually heard on either side of the mother's abdomen.
b. A breech presentation is when the fetus's buttocks or feet are closest to the cervix. The fetal heart tones are usually heard above the umbilicus, at the midline, in a breech presentation.
c. A cephalic presentation is when the fetus's head is closest to the cervix, and the fetal heart tones are usually heard below the umbilicus, in either quadrant.
d. An oblique presentation is when the fetus's head or buttocks are angled toward one side of the pelvis, and the fetal heart tones are usually heard off-center, above or below the umbilicus.
e. A transverse presentation is when the fetus's spine is perpendicular to the mother's spine, and the fetal heart tones are usually heard on one side of the abdomen.

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The nurse is reviewing fetal circulation with a pregnant patient and explains that blood circulates through the placenta to the fetus. What is the function of ductus arteriosus? Select one:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has a suspected ectopic pregnancy at 8 weeks of gestation. Which of the following manifestations should the nurse expect to identify as consistent with the diagnosis?

Correct Answer is D

Explanation

A nurse is caring for a client who is at 39 weeks of gestation and is in active labor. The nurse locates the fetal heart tones above the client's umbilicus, at the midline. The nurse should suspect that the fetus is in which of the following presentation?

Correct Answer is B

Explanation

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The nurse is reviewing fetal circulation with a pregnant patient and explains that blood circulates through the placenta to the fetus. What is the function of ductus arteriosus?
Select one: