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 A
Explanation
History of urinary tract infections.According to the Mayo Clinic, untreated vaginal infections, such as urinary tract infections or sexually transmitted infections, are risk factors for preterm labor.
These infections can cause inflammation and irritation of the cervix, which can trigger contractions and cervical dilation.
Choice B is wrong because maternal age of 25 years is not a risk factor for preterm labor.In fact, women younger than 18 or older than 35 are more likely to have a preterm delivery.
Choice C is wrong because singleton pregnancy is not a risk factor for preterm labor.On the contrary, being pregnant with twins, triplets, or more (called "multiple gestations") is associated with a higher risk of preterm labor and birth.
Choice D is wrong because cervical length of 3 cm is not a risk factor for preterm labor.A short cervix (less than 2.5 cm) or a cervix that shortens in the second trimester instead of the third trimester is a risk factor for preterm delivery.A normal cervical length ranges from 3 to 5 cm during pregnancy.
Correct Answer is ["B","C","D","E"]
Explanation
Magnesium sulfate IV infusion can cause various adverse effects such asflushing,headache,nauseaanddrowsiness.
These are common and expected side effects of this medication.
Choice A is wrong because magnesium sulfate IV infusion does not causediarrhea.Diarrhea is a possible side effect of oral magnesium sulfate, which is used as a laxative.
However, oral magnesium sulfate is not used to treat pre-term labor or prevent seizures.
Normal ranges of magnesium in the blood are 1.7 to 2.2 mg/dL for adults.
Magnesium sulfate IV infusion is used to treat hypomagnesemia (low levels of magnesium in the blood) or to prevent seizures in pregnant women with pre-eclampsia, eclampsia or toxemia.
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