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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
a. In this case, the woman is pregnant for the fourth time, so her gravidity is 4.
She has one child born at 39 weeks, another child born at 40 weeks, and one child born at 36.2 weeks. The first two are considered term births, and the last one is considered a preterm birth. Therefore, her term is 1 and her preterm is 2. She has no abortions, so her abortion is 0. She has three living children, so her living children is 3. Hence, her GTPAL is 4-2-1-0-3.
b. This indicates 1 full-term pregnancy, 1 preterm pregnancy, and 3 living child.
c. This would indicate 1 full-term pregnancy, 2 preterm pregnancies, and 3 living children.
d. 4-3-0-0-3: This would indicate 3 full-term pregnancies and 3 living children.
Correct Answer is C
Explanation
a. Diazepam is not indicated for the treatment of severe preeclampsia.
b. Hydralazine orally twice a day is not indicated for the treatment of severe preeclampsia.
c. Calcium Gluconate is indicated for the treatment of hypermagnesemia, which can occur as a result of magnesium sulfate infusion.
d. This will worsen the magnesium toxicity.

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