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Dignity Health’s neurologists use electroencephalogram (EEG) tests to record and monitor your brain’s electrical activity. This diagnostic test is noninvasive and painless.
Dignity Health Southern California offers a full complement of neurology and neurosurgery services, including diagnostic testing, at our state-of-the-art hospitals and imaging centers. To receive an EEG in Southern California, use our online Find a Doctor tool and make an appointment today.
Your doctor may use an electroencephalogram test to diagnose or monitor several health conditions that may affect your brain activity. An EEG test is commonly used to detect or analyze:
Your doctor will give you complete instructions on how to prepare for your EEG test. They may include:
An experienced EEG technician will perform the test and send the test results to your doctor. The length of time your EEG will take depends on the purpose of the test. In some cases, overnight or extended monitoring is required.
During the test, adhesive-backed electrodes will be placed on your scalp and possibly your face. The EEG technician will connect the electrodes to a machine that records your brain activity. The technician will have you close your eyes and lie still. You may be asked to perform certain activities during the test, such as breathing fast or looking at a flashing strobe light.
An EEG test is generally safe. If portions of the procedure trigger a seizure, such as viewing a strobe light, the EEG technician is trained to respond accordingly.
You may immediately return to normal activities following an EEG. If you experience a seizure during the test, the technician will give you specific instructions about how to proceed.
The electroencephalogram test can help your doctor diagnose seizure disorders and other brain conditions. Once a diagnosis has been established, your doctor will be able to plan a specialized treatment strategy to fit your specific needs.