The electrogram procedure can provide information about the extent of nerve and/or muscle injury and can give some indication as to whether the damage is reversible. These needles pick up both normal and abnormal electrical signals given off by a muscle when you move them. The needle exam involves inserting very fine needles into several muscles.This measures how well electricity moves through your nerves. The nerve conduction study involves stimulating the nerves at different points with small electric stimulation.The results can help your doctor find problems linked to certain disorders or conditions. It consists of two parts: a nerve conduction study and a needle exam for muscle testing. The electrogram (EMG) procedure is a test of your muscles and nerves. Electromyography sends electrical signals through nerves to diagnose nerve problems.
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