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. An abnormal odor of the amniotic fluid, such as a foul or fishy smell, may indicate infection and is a concern with ruptured membranes and an elevated temperature.
b. This may be necessary if the client has an infection or other complications, but it is not the first action to take.
c. This is not an appropriate action when the client has an elevated temperature and ruptured membranes.
d. Glucocorticoids may be administered to promote fetal lung maturity in preterm labor, but they are not appropriate in this situation.
Correct Answer is C
Explanation
a. This is a common cause of variable decelerations, not late decelerations.
b. This is a common cause of variable decelerations, not late decelerations.
c. Late decelerations are caused by decreased blood flow to the placenta during contractions, resulting in a reduced oxygen supply to the fetus.
d. This is a common cause of variable decelerations, not late decelerations.
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