A client in preterm labor has had an infusion of magnesium sulfate running for 8 hours. Current assessment findings are respirations of 14 breaths/minute, a urine output of 25 mL/hr, deep tendon reflexes of 1+, and a serum magnesium level of 8 mEq/L (4 mmol/L). Based on these assessment findings, which conclusion should the nurse reach?

Choice A rationale While routine follow-up is necessary, these findings suggest magnesium sulfate toxicity, requiring immediate attention beyond routine monitoring. Hence, this is not the correct action. Choice B rationale Although reporting abnormal findings to the healthcare provider is critical, not all findings are necessarily outside acceptable ranges. This choice lacks the specificity needed in this context, making it less appropriate. Choice C rationale Increasing primary IV fluids could help with low urine output but would not address potential magnesium toxicity, which is the primary concern indicated by the assessment. Therefore, it is not the correct conclusion. Choice D rationale The findings suggest magnesium toxicity, including decreased respirations, reduced urine output, and deep tendon reflexes. Close follow-up, including immediate medical intervention, is needed to manage this potential toxicity.