A nurse is caring for a pre-term newborn who has a patent ductus arteriosus (PDA).
Which of the following medications should the nurse expect to administer to close the ductus arteriosus?
Indomethacin
Prostaglandin E1
Furosemide
Digoxin
The Correct Answer is A
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that helps close the ductus arteriosus, a blood vessel connecting two arteries of the heart (aorta and pulmonary artery) in fetus. This drug is effective only among premature babies.
Choice B. Prostaglandin E1 is wrong because it is used to keep the ductus arteriosus open in some congenital heart defects that require surgery.
Choice C. Furosemide is wrong because it is a diuretic that reduces fluid retention and blood pressure, but does not affect the ductus arteriosus.
Choice D. Digoxin is wrong because it is a cardiac glycoside that strengthens the heart muscle contractions and regulates the heart rhythm, but does not affect the ductus arteriosus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Lying on one’s back with knees bent while using the monitor is not recommended for women at risk of preterm labor, as it can put pressure on the inferior vena cava, a major vein leading back to the heart.This can cause low blood pressure and reduce blood flow to the uterus and the baby.A better position is to lie on one’s side with a pillow at the back for support.
Choice A is correct because emptying the bladder before applying the monitor can reduce interference from urine contractions and make the readings more accurate.
Choice C is correct because pressing the event marker every time one feels a contraction can help record the frequency and duration of uterine activity.
Choice D is correct because using the monitor for at least 1 hour twice a day can provide sufficient data on uterine contractions and help detect early signs of preterm labor.
Correct Answer is D
Explanation
According to the search results, magnesium sulfate can have a negative effect on the fetal heart rate (FHR) by lowering the baseline, decreasing the variability, and reducing the reactivity or acceleration pattern.Absent variability means that there is no fluctuation in the FHR and it indicates fetal hypoxia or acidosis.
This is a potential adverse effect of magnesium sulfate on the fetus and requires immediate intervention.
Choice A.Accelerations is wrong because accelerations are transient increases in the FHR that indicate fetal well-being.They are not affected by magnesium sulfate.
Choice B.Early decelerations is wrong because early decelerations are decreases in the FHR that occur with uterine contractions and are caused by fetal head compression.They are benign and do not indicate fetal distress.They are not associated with magnesium sulfate.
Choice C.Variable decelerations is wrong because variable decelerations are abrupt decreases in the FHR that vary in shape, duration, and timing and are caused by umbilical cord compression.
They may or may not indicate fetal compromise.
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