A nurse is caring for a client who has eclampsia and is receiving magnesium sulfate and hydralazine.
The client’s blood pressure is 150/90 mmHg, pulse is 88/min, respirations are 18/min, and oxygen saturation is 97%.
The nurse notes that the client’s deep tendon reflexes are absent.
Which of the following actions should the nurse take?
Stop the magnesium sulfate infusion
Increase the rate of the hydralazine infusion
Administer calcium gluconate IV push
Prepare for immediate delivery of the fetus
The Correct Answer is A
Stop the magnesium sulfate infusion.
The client is showing signs of magnesium toxicity, such as absent deep tendon reflexes, which can lead to respiratory depression and cardiac arrest.
Magnesium sulfate is an anticonvulsant that is used to prevent seizures in eclampsia, but it can also cause vasodilation and hypotension.
The nurse should stop the infusion and monitor the client’s vital signs and neurological status.
Choice B. Increase the rate of the hydralazine infusion is wrong because hydralazine is an antihypertensive that lowers blood pressure.
The client’s blood pressure is already within the normal range for eclampsia (140/90 to 160/110 mmHg), so increasing the rate of hydralazine could cause hypotension and compromise placental perfusion.
Choice C. Administer calcium gluconate IV push is wrong because calcium gluconate is an antidote for magnesium toxicity, but it should not be given IV push.
It should be given slowly over 10 to 20 minutes to avoid cardiac arrhythmias and bradycardia.
Choice D. Prepare for immediate delivery of the fetus is wrong because delivery of the fetus is not indicated at this time.
The client’s vital signs are stable and there is no evidence of fetal distress or placental abruption.
Delivery of the fetus is the definitive treatment for eclampsia, but it should be done when the maternal and fetal conditions are optimal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Magnesium sulfate therapy is used to prevent seizures in women with preeclampsia, a complication of pregnancy characterized by high blood pressure and organ dysfunction.Seizures are a sign of eclampsia, a severe form of preeclampsia that can be life-threatening.
Therefore, if the therapy is successful, the woman should not have any seizures.
Choice B.Absence of proteinuria is wrong because proteinuria, or excess protein in urine, is a possible sign of preeclampsia, not eclampsia.
Proteinuria may not disappear even after magnesium sulfate therapy.
Choice C.Absence of edema is wrong because edema, or swelling, is a common symptom of pregnancy and may not be related to preeclampsia or eclampsia.
Edema may not disappear even after magnesium sulfate therapy.
Choice D.Absence of headache is wrong because headache is a symptom of preeclampsia, not eclampsia.
Headache may not disappear even after magnesium sulfate therapy.
Normal ranges for blood pressure are below 140/90 mm Hg and for protein in urine are below 300 mg per 24 hours.
Correct Answer is A
Explanation
Administer calcium gluconate as an antidote if toxicity occurs.Magnesium sulfate is a mineral that reduces seizure risks in women with severe preeclampsia.However, it can also cause side effects and toxicity, such as respiratory depression, muscle weakness, and cardiac arrest.Calcium gluconate is an antidote that can reverse the effects of magnesium sulfate and restore normal neuromuscular function.
Choice B is wrong because magnesium sulfate does not affect blood glucose levels.
There is no need to monitor the client’s blood glucose level every 4 hours.
Choice C is wrong because the infusion should be discontinued if the client’s respiratory rate is below 12/min, not 16/min.
A low respiratory rate indicates respiratory depression, which is a sign of magnesium toxicity.
Choice D is wrong because the infusion rate should not be increased if the client’s urine output is above 30 mL/hr.Urine output should be at least 30 mL/hr while administering magnesium sulfate to prevent accumulation of the drug in the body.
Increasing the infusion rate can increase the risk of toxicity.
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