The nurse is reviewing fetal and maternal circulation with a group of nursing students. Which statement by a student demonstrates a need for further clarification?

"The placenta is the site of gas exchange for the fetus."

"The umbilical arteries carry deoxygenated blood from the fetus to the placenta."

"The fetal heart pumps blood to both the placenta and the developing organs."

"Maternal and fetal blood mix to allow for nutrient and oxygen exchange."

Answer and Explanation

The Correct Answer is D

A. "The placenta is the site of gas exchange for the fetus."
This is correct because the placenta facilitates oxygen and carbon dioxide exchange between maternal and fetal circulation without direct blood mixing.
B. "The umbilical arteries carry deoxygenated blood from the fetus to the placenta."
This is correct because the two umbilical arteries carry deoxygenated blood from the fetus to the placenta, where gas exchange occurs.
C. "The fetal heart pumps blood to both the placenta and the developing organs."
This is correct because the fetal heart pumps oxygenated blood to its developing organs and sends deoxygenated blood to the placenta for gas exchange.
D. "Maternal and fetal blood mix to allow for nutrient and oxygen exchange."
This is incorrect because maternal and fetal blood do not mix under normal conditions. Instead, nutrients, gases, and waste products pass through the placental barrier via diffusion. If maternal and fetal blood mix, it could indicate a placental rupture or pathological condition.

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Correct Answer is B

Explanation

A. Retained placental fragments
This is incorrect because retained placental fragments are more commonly associated with prolonged third-stage labor or incomplete placental expulsion, rather than fetal macrosomia.

B. Uterine atony
This is correct because a large baby (macrosomia) causes overdistension of the uterus, increasing the risk of uterine atony (failure of the uterus to contract effectively). This can lead to postpartum hemorrhage.

C. Puerperal infection
This is incorrect because puerperal infection is usually related to prolonged rupture of membranes, poor hygiene, or invasive procedures, rather than fetal size alone.

D. Thrombophlebitis
While pregnancy increases the risk of clot formation, the most immediate concern for this client is uterine atony and postpartum hemorrhage.

A. The client's level of sexual stimulation B. If taken with a high fat meal, the medication is more effective C. The client's recent consumption of caffeine D. If client took an additional dose to achieve an erection

Correct Answer is A

Explanation

A. The client's level of sexual stimulation
Sildenafil requires sexual stimulation to be effective. It enhances blood flow to the penis but does not automatically cause an erection. The client should be educated that adequate sexual arousal is necessary for the medication to work.

B. If taken with a high-fat meal, the medication is more effective
Taking sildenafil with a high-fat meal can actually delay its absorption and reduce effectiveness. Clients should be advised to take it on an empty stomach or with a light meal for optimal results.

C. The client's recent consumption of caffeine
Caffeine intake does not interfere with sildenafil’s effectiveness. However, excessive caffeine consumption may contribute to vasoconstriction, which could indirectly affect erectile function.

D. If client took an additional dose to achieve an erection
Taking an extra dose of sildenafil is not recommended and can increase the risk of serious side effects such as hypotension, priapism (prolonged erection), and cardiovascular complications. The client should follow prescribed dosing guidelines.

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The nurse is reviewing fetal and maternal circulation with a group of nursing students. Which statement by a student demonstrates a need for further clarification?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is 5 hr postpartum following a vaginal birth of a newborn weighing 9 lb 6 oz. (4252 g). The nurse should recognize that this client is at risk for which of the following postpartum complications?

Correct Answer is B

Explanation

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Correct Answer is A

Explanation

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