A nurse is teaching a client who is at 25 weeks of gestation and has pre-term labor about the purpose and side effects of magnesium sulfate therapy.
Which of the following statements by the client indicates an understanding of the teaching?
“This medication will help prevent seizures in case I develop preeclampsia.”
“This medication will help mature my baby’s lungs in case he is born early.”
“This medication will help relax my uterus and stop contractions.”
“This medication will help lower my blood pressure in case it gets too high.”
The Correct Answer is C
This medication will help relax my uterus and stop contractions.
Magnesium sulfate is a tocolytic, a medication used to suppress uterine contractions and delay preterm delivery. The exact mechanism through which magnesium sulfate inhibits contractions is unknown, but researchers believe it likely works by lowering calcium levels in the uterine muscles.
Choice A is wrong because magnesium sulfate is not used to prevent seizures in case of preeclampsia.
Preeclampsia is a condition characterized by high blood pressure and protein in the urine during pregnancy. Magnesium sulfate may be used to treat seizures if they occur with eclampsia, which is a severe complication of preeclampsia.
Choice B is wrong because magnesium sulfate does not help mature the baby’s lungs in case of preterm birth.
Magnesium sulfate may have some neuroprotective effects for the baby, but it does not affect lung development. Steroids are usually given to pregnant women at risk of preterm delivery to help accelerate fetal lung maturation.
Choice D is wrong because magnesium sulfate does not lower blood pressure in case it gets too high.
Magnesium sulfate may have some vasodilatory effects, but it is not used as an antihypertensive agent. Other medications, such as hydralazine or labetalol, are used to treat high blood pressure during pregnancy.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that can cause renal impairment and elevated serum creatinine levels in both the mother and the fetus.This can lead to oligohydramnios, reduced fetal urine output, and fetal renal failure.
Therefore, the nurse should monitor the serum creatinine levels of the client and the fetus as a potential complication of indomethacin.
Choice A is wrong because indomethacin does not affect the platelet count.It may increase the risk of bleeding due to its antiplatelet effect, but it does not cause thrombocytopenia.
Choice C is wrong because indomethacin does not cause anemia or decrease the hematocrit.It may cause gastrointestinal bleeding or ulceration, which could lead to anemia, but this is not a common or direct effect of the medication.
Choice D is wrong because indomethacin does not cause hyperkalemia or increase the serum potassium levels.It may cause hyponatremia due to its effect on renal sodium excretion, but it does not affect potassium balance.
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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