A 36-year-old primigravida is receiving treatment for preeclampsia at 29 weeks' gestation. in light of the latest information on the client's record, which nursing intervention is of the highest importance at this time?

Epigastric pain, blurred vision, and headache are prodromal indications of eclampsia in a client with preeclampsia. Insignificant urine production in 8 hours should be 240, or 30 mL/hr. The jeopardy for a tonic-clonic seizure rises dramatically, and death is possible. Because the client is receiving a central nervous system depressant, it is more likely that the fetal heart rate may be reduced.