Patient's question:
Nephew had a seizure and was sent to the hospital. He is now undergoing an electroencephalogram (EEG) at the hospital. How long does an EEG for epilepsy usually take?Doctor's answer:
The diagnosis of epilepsy primarily relies on clinical manifestations and a 24-hour ambulatory EEG. An EEG can be divided into a standard EEG and a 24-hour ambulatory EEG. If it is a standard EEG, it usually takes about ten minutes. If it is an ambulatory EEG, it requires at least one full night of monitoring data to detect whether there are epileptic waves. In clinical diagnosis, a 24-hour ambulatory EEG is commonly used for testing, with a relatively high diagnostic rate.