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Somatosensory Evoked Potentials (SSEP)

Somatosensory Evoked Potentials (SSEP)

Somatosensory Evoked Potentials testing measures response from stimuli to the peripheral nerves (arms and legs) and can detect nerve or spinal cord damage or nerve degeneration. The test is also sometimes referred to as upper evoked potentials, lower evoked potentials, upper and/or lower somatosensory evoked potentials.

How the Test is Performed

You lie on a bed and remain still. Electrodes are placed on your scalp and your arm(s) and/or leg(s). Tiny electrical shocks are delivered by electrode to a nerve in an arm or leg. Responses to the shocks, which may be delivered for more than a minute at a time, are recorded.

How to Prepare for the Test

Wear loose fitting clothing to be able to expose your arms and legs.

How the Test Will Feel

You will feel a little discomfort when the test is being performed. Depending on how in-depth the testing, the test can last from 1 -3 hours.

Why the Test is Performed

The test is being done to help diagnose any possible nerve damage.

Risks

There are no risks.