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. Massaging the client's back can help to close the "gate" for pain signals to reach the brain according to the Gate control theory of pain.
b. Administering analgesic medications addresses pain but does not directly apply the principles of the Gate control theory.
c. Placing the client on a supine position does not specifically address pain control according to the Gate control theory.
d. Repositioning onto her left side may be done for fetal well-being but does not directly apply the principles of the Gate control theory.
Correct Answer is D
Explanation
a. A negative rubella titer indicates that the client is not immune to rubella.
b. Rubella vaccine is contraindicated during pregnancy.
c. A negative rubella titer does not indicate whether the client is currently experiencing a rubella infection.
d. A negative rubella titer means that the client does not have antibodies against the rubella virus, which can cause congenital defects in the fetus if the mother gets infected during pregnancy. Therefore, the client should receive the rubella vaccine after delivery, when it is safe to do so.
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