How is Muscular Dystrophy diagnosed?
Reviewed by: My Child Without Limits Advisory Committee September 2009 To diagnose muscular dystrophy a doctor will take a detailed history, perform a thorough physical examination, and conduct specific tests. One of these tests is an electromyogram (EMG), which measures the electrical activity of the muscles. If a diagnosis cannot be made based on these tests, a muscle biopsy is often performed. These tests usually give the diagnosis in about 80% of the patients. However, even with new tests approximately 15%-20% of patients will go undiagnosed.