Which assessment in a patient diagnosed with preeclampsia who is taking magnesium sulfate would indicate a therapeutic level of medication?

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Magnesium sulfate is administered for preeclampsia to reduce the risk of seizures from cerebral irritability. Hyperreflexia (deep tendon reflexes above normal) is a symptom of cerebral irritability. If the dosage of magnesium sulfate is effective, reflexes should decrease to normal or slightly below normal levels. Drowsiness is another sign of CNS depression from magnesium toxicity. A urinary output of 20 mL/hour is inadequate output. A respiratory rate of 10 to 12 breaths per minute is too slow and could be indicative of magnesium toxicity.

Which Assessment in a Patient Diagnosed with Preeclampsia Who Is