A nurse is planning care for a client who is at 31 weeks of gestation and has preeclampsia with severe features. The client has a new prescription for magnesium sulfate via continuous IV infusion. Which of the following actions should the nurse plan to take?

A. Administer calcium gluconate for urine output less than 50 mL/hr: Calcium gluconate is given to treat magnesium sulfate toxicity, which is indicated by absent deep tendon reflexes, respiratory depression, or high serum magnesium levels. Low urine output requires monitoring but does not automatically warrant calcium gluconate administration. B. Check deep tendon reflexes every 8 hr: Deep tendon reflexes should be assessed frequently during magnesium sulfate therapy, usually every 1–2 hours, to detect early signs of toxicity. Checking only every 8 hours is insufficient for safe monitoring. C. Administer one dose of betamethasone now and repeat in 24 hr: Betamethasone is given to accelerate fetal lung maturity in preterm gestation, which is critical at 31 weeks. Administering the two-dose course as prescribed helps reduce neonatal respiratory complications, making this a priority intervention alongside magnesium sulfate therapy. D. Limit IV intake to no more than 200 mL/hr: Monitoring and limiting IV fluids helps prevent fluid overload and pulmonary edema in preeclamptic clients, but ensuring fetal lung maturity with betamethasone takes priority at this gestational age in case of an early delivery.