What should you know about first time seizure workup?

A clinician will ask what happened before, during, and after the event, including unusual movements, loss of awareness, tongue injury, incontinence, confusion, and recovery time. A witness’s account or a phone recording can be useful. The team also reviews medicines, alcohol or drug exposure, sleep, fever, head injury, and previous neurological symptoms.

Testing may include blood tests, an electrocardiogram, brain imaging, or an electroencephalogram. The aim is to distinguish a seizure from conditions that can look similar and to identify problems such as bleeding, infection, metabolic disturbance, or a structural brain lesion. A first seizure does not by itself diagnose a brain tumour, brain metastases, or glioblastoma.

Arrange urgent medical review even if you feel normal afterward. Do not drive, swim alone, climb heights, or use dangerous machinery until a clinician gives safety advice. Write down the event details and bring your medicine list. If another event occurs, protect the person from injury, turn them on their side when safe, and do not put anything in their mouth.

Call emergency services if the seizure lasts longer than expected, repeats without recovery, causes serious injury, happens in water, occurs during pregnancy, or is followed by severe breathing difficulty. New weakness, persistent confusion, severe headache, fever with a stiff neck, or a first seizure in someone with known cancer also needs immediate assessment.

Which tests do I need and how soon? Could a medicine, metabolic problem, or fainting episode explain what happened? What restrictions apply while the cause is being assessed, and what symptoms should prompt emergency care?