Electrodiagnostic approach to patients with suspected generalized neuromuscular disorders.

Electrodiagnosis is an important part of the diagnostic evaluation for patients with suspected neuromuscular diseases. The electrodiagnostician should maintain a broad, inclusive differential diagnosis and tailor the examination using a sound conceptual framework. A clear understanding of what is normal provides the proper foundation on which to judge electrodiagnostic findings. Many peripheral neuromuscular conditions manifest themselves in characteristic ways on EMG and nerve conduction testing, making them identifiable to the skilled electrodiagnostic medicine consultant.