Which statement below accurately describes the role of the ductus arteriosus?

The ductus arteriosus helps connect the umbilical artery to the inferior vena cava.

The ductus arteriosus only carries oxygenated blood from the left side of the heart to the right side.

The ductus arteriosus is found between the right and left atrium.

In fetal circulation, the pulmonary artery and aorta are connected via the ductus arteriosus.

Answer and Explanation

The Correct Answer is D

Choice A rationale

The ductus arteriosus does not connect the umbilical artery to the inferior vena cava. It connects the pulmonary artery to the aorta, bypassing the lungs in fetal circulation.

Choice B rationale

The ductus arteriosus carries deoxygenated blood from the right side of the heart to the aorta. It does not carry oxygenated blood from the left side of the heart.

Choice C rationale

The ductus arteriosus is not located between the right and left atrium. It is a blood vessel connecting the pulmonary artery to the aorta in fetal circulation.

Choice D rationale

In fetal circulation, the pulmonary artery and aorta are connected via the ductus arteriosus. This allows blood to bypass the fetal lungs, which are not yet functional.

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Correct Answer is ["A","C","D"]

Explanation

Choice A rationale

Avoiding fried and spicy foods can reduce nausea by preventing gastric irritation and reflux, common in pregnancy due to hormonal changes. Ginger, bland foods are better alternatives.

Choice B rationale

Lying down after eating may exacerbate nausea and acid reflux due to the relaxation of the lower esophageal sphincter caused by pregnancy hormones. Remain upright for at least 30 minutes.

Choice C rationale

Eating dry crackers before getting out of bed helps stabilize blood glucose levels, reducing morning sickness. This is effective due to hormonal fluctuations affecting digestion in pregnancy.

Choice D rationale

Avoiding overfilling the stomach prevents excessive distension, reducing pressure on the stomach and lower esophageal sphincter, thus minimizing nausea and reflux. Smaller, frequent meals are recommended.

Choice E rationale

This choice is invalid, as it does not directly correlate with recommended nausea management strategies in pregnancy. Focus on dietary adjustments and hydration instead.

A. Listen to the fetal heart rate. B. Assess the client’s recent food and fluid intake. C. Check the client’s blood pressure and pulse. D. Turn the client to a lateral position.

Correct Answer is D

Explanation

Choice A rationale

Evaluating the fetal heart rate does not address maternal symptoms of supine hypotensive syndrome. Moving the client first corrects the underlying issue. Fetal evaluation can follow once maternal circulation improves, ensuring both are assessed.

Choice B rationale

Checking recent food and fluid intake does not immediately address the likely cause of supine hypotensive syndrome. Correcting maternal positioning is urgent to improve venous return and prevent adverse effects, then other assessments can follow.

Choice C rationale

Measuring blood pressure and pulse can confirm hypotension but does not address its cause. Immediate repositioning to lateral position alleviates the compression on the inferior vena cava, improving blood flow before measuring vitals.

Choice D rationale

Turning to a lateral position relieves the vena cava from compression by the gravid uterus, reducing symptoms of supine hypotensive syndrome. This action improves venous return, stabilizing maternal hemodynamics and alleviating dizziness and pallor.

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Which statement below accurately describes the role of the ductus arteriosus?

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a client who is experiencing nausea associated with her pregnancy. The nurse should recommend that the client:

Correct Answer is ["A","C","D"]

Explanation

The clinic nurse is measuring the uterine fundal height of a client at 36 weeks gestation lying in a supine position. The client suddenly reports dizziness, and the nurse observes pallor and damp, cool skin. What should the nurse do first?

Correct Answer is D

Explanation

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