Also known as: EPs, evoked responses.
What are evoked potentials?
Evoked potentials is a test used to measure the responses of the nervous system to specific stimuli. It is used as a diagnostic tool for detecting dysfunction of pathways in the brain or spinal cord seen in many common neurological disorders.
What happens during the procedure?
A technician will place wires on the scalp, directly over the areas of the brain where the nerve activity is being measured. Then sensory input is provided to the patient in the form of visual stimulation, auditory stimulation or electrical impulses delivered to the arm or leg.
Is any special preparation needed?
In most cases, no special preparation is needed. Be sure to tell your doctor if you have a pacemaker or other electrical device in the body.
What are the risk factors?
There are few risk factors related to evoked potentials.
Reviewed by: Prasanna Jayakar, MD, PhD.
This page was last updated on: 7/27/2018 9:22:48 AM
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