Your doctor will take a detailed history from you and observers to help determine if you have
epilepsy. The history may include questions about:
Your past medical historyFamily medical historyAny and all medications you take
How were you feeling before the seizure?How old were you at the onset of the condition?Was there any warning?What did the seizure look like, or what were you told it looked like?Were there any symptoms after the seizure?How long did the seizure last?How many seizures have you had before?After the seizure, did paralysis, twitches, confusion, slowed responsiveness, urine incontinence, or tongue biting occur?
Your doctor may perform a physical exam. Special attention will be given to your nervous system. Tests will be taken to see if you might have epilepsy, and if so, what type of seizures you have.
You may need to have your brain activity tested. This can be done with:
EEG—Best results are achieved when this test is performed within 24 hours of a seizure. Many times repetitive or continuous EEG monitoring may be needed.
You may need to have brain scans. These can be done with:
MRI scanPET scansSPECT scanMR spectroscopyAngiographyEchoencephalogram—This test is most often used in infants.
You may need to have your blood tested. Blood tests check for possible causes of the seizures, including:
Metabolic disorders, such as abnormal blood levels of sugar, calcium, sodium, potassium, or magnesiumGenetic disorders
Infections, such as
You may need to have your bodily fluids tested. This can be done with:
Urine testsLumbar puncture—to evaluate cerebrospinal fluid in the brain and spinal cord
You may need to have your motor abilities, behavior, and intellectual capacity tested. This can be done with:
Developmental testsNeurological testsBehavioral tests
Placement of Sensors for an EEG
Copyright © Nucleus Medical Media, Inc.
Diagnosing epilepsy. Epilepsy Foundation
website. Available at: http://www.epilepsy.com/learn/diagnosing-epilepsy. Accessed February 6, 2017.
Epilepsy information page. National Institute of Neurological Disorders and Stroke website. Available at:
Accessed February 6, 2017.
Seizure disorders. Merck Manual Professional Version website. Available at: http://www.merckmanuals.com/professional/neurologic-disorders/seizure-disorders/seizure-disorders. Updated June 2016. Accessed February 6, 2017.
Last reviewed February 2017 by Rimas Lukas, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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