The correct term that describes Jackie's condition at the time of delivery is Eclampsia.
Eclampsia is characterized by the onset of seizures in a patient with preeclampsia, which includes symptoms such as high blood pressure, protein in the urine, and edema (swelling). Given that Jackie experienced seizures (her first seizure) and was diagnosed with related complications during her pregnancy, eclampsia is the most accurate term.
Preeclampsia refers to the condition with the symptoms leading up to seizures (without the seizure itself), while oliguria refers to low urine output, and epilepsy is a separate neurological condition unrelated to pregnancy.