f66e75ad_k_Pain_Patient_Education_Guide__2
[0] EMG (electromyography) [1] Measures electrical impulses sent by nerves and accompanying muscle responses to them [3] Abnormal findings show nerve compression from spinal canal narrowing called spinal stenosis or from herniated disks [2] 
After changing into a hospital gown, you will lie on an examination table.The neurologist places surface electrodes at various sites on your skin, depending on where the pain is. The electrodes send out tiny impulses which may cause a spasm or twinge. The neurologist or technician will see if there is electrical activity when the muscle is at rest and when it is contracted.
Back Pain Patient Education Guide
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