![]() ![]() The test measures the speed of nerve conduction to determine whether nerves are working properly. It involves inserting fine needles through the skin into a muscle. Performing electrodiagnostic testing too soon after symptom onset may give results that do not fully encompass the nerve damage process. An EMG can determine whether neck pain might be related to a pinched nerve. This test may be especially important for diagnosing brachial neuritis because it may show an abnormality in the muscle that is not detected by a nerve conduction study.Įlectrodiagnostic testing for brachial neuritis is typically performed at least 3 weeks after the onset of symptoms in order to obtain more reliable results.
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