A nurse is assessing a client with severe pre-eclampsia who is receiving magnesium sulfate infusion.
Which finding should alert the nurse to suspect magnesium toxicity?
Respiratory rate of 10 breaths/min
Deep tendon reflexes of 2+
Urine output of 40 mL/hour
Serum magnesium level of 6 mq/L
The Correct Answer is A
Respiratory rate of 10 breaths/min.
This is a sign of magnesium toxicity, which can occur when a client receives magnesium sulfate infusion for severe pre-eclampsia. Magnesium toxicity can cause muscle weakness, difficulty breathing, irregular heartbeats, and cardiac arrest.
Choice B is wrong because deep tendon reflexes of 2+ are normal and do not indicate magnesium toxicity.
Choice C is wrong because urine output of 40 mL/hour is adequate and does not indicate magnesium toxicity.
The minimum urine output for an adult is 30 mL/hour.
Choice D is wrong because serum magnesium level of 6 mEq/L is within the normal range of 1.7 to 2.3 mEq/L and does not indicate magnesium toxicity. Magnesium levels above 2.6 mEq/L can indicate hypermagnesemia.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
“You may feel warm and flushed while receiving this medication.” This is a common side effect of magnesium sulfate therapy, which is used to prevent seizures in women with severe pre-eclampsia.Magnesium sulfate can also help prolong a pregnancy for up to two days by relaxing the uterus.
Choice B is wrong because magnesium sulfate can cause fluid retention and swelling, not dehydration.Choice C is wrong because magnesium sulfate can cause drowsiness and lethargy, not insomnia and restlessness.Choice D is wrong because magnesium sulfate can cause decreased blood pressure and heart rate, not inflammation and infection at the infusion site.
Normal ranges for blood pressure are below 140/90 mm Hg, for platelet count are 150,000 to 450,000 per microliter of blood, and for protein in urine are less than 300 milligrams per day.
Correct Answer is B
Explanation
Turn the client to the side.This is because turning the client to the side will prevent aspiration of secretions or vomitus and maintain a patent airway during a seizure.
This is the most important and immediate action to take for a client with eclampsia who is having a tonic-clonic seizure.
Choice A is wrong because administering oxygen via face mask is not the first priority and may not be feasible during a seizure.Oxygen therapy may be indicated after the seizure to improve oxygenation and fetal well-being.
Choice C is wrong because inserting an oral airway is contraindicated during a seizure as it may cause injury to the oral mucosa or trigger a gag reflex.An oral airway may be used after the seizure if the client is unconscious and has a compromised airway.
Choice D is wrong because giving a loading dose of magnesium sulfate is not the first action to take, although it is an important intervention to prevent further seizures and lower blood pressure in eclampsia.Magnesium sulfate should be administered intravenously after securing the airway and ensuring adequate ventilation.
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