Seizure on day 11 after birth — postpartum eclampsia emergency station

A 27-year-old woman gave birth vaginally 11 days ago at 40 weeks. Her pregnancy was entirely normal and every antenatal blood pressure was recorded below 130/80 mmHg. She was brought to the emergency department by ambulance after a witnessed generalised tonic-clonic seizure at home lasting 90 seconds. She is now drowsy but rousable. Blood pressure 186/118 mmHg, pulse 104 bpm, oxygen saturation 96 per cent on room air, temperature 36.8 degrees Celsius, capillary glucose 5.4 mmol per litre. Her partner and her 11-day-old baby are with her. You are the obstetric registrar; the consultant is 20 minutes away.