A woman receiving magnesium sulfate for eclampsia has a urine output of 20 mL per hour, a respiratory rate of 16 per minute, and present knee reflexes. What should the nurse do?
Correct answer: B. Withhold the next dose and notify the prescriber
- A. Give the next dose and increase the infusion rate
- B. Withhold the next dose and notify the prescriber
- C. Give an additional dose to prevent another seizure
- D. Encourage oral fluids and document the finding later
Explanation
Magnesium sulfate is eliminated by the kidneys, so low urine output increases the risk of accumulation and toxicity even before respiratory depression or absent reflexes appears. The nurse withholds the next dose, reports the finding promptly, and continues close monitoring. Giving more magnesium could precipitate serious toxicity.
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About Obstetric Emergencies
Acute threats to the mother or fetus include postpartum haemorrhage, eclampsia, shock, cord prolapse, shoulder dystocia, uterine rupture, amniotic fluid embolism and fetal distress. The subject covers rapid assessment, airway and circulation support, emergency medicines, positioning, preparation for assisted or operative birth, and coordinated referral.
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