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Pseudohypertrophic Muscular Dystrophy - Duchenne Muscular Dystrophy
- Overview, Causes, & Risk Factors
- Symptoms & Signs
- Diagnosis & Tests
- Prevention & Expectations
- Treatment & Monitoring
- Attribution
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Diagnosis & Tests
How is the disease diagnosed?
High levels of creatinine phosphokinase, or CPK, in the blood can confirm the diagnosis. These levels are 20 to 100 times the normal amounts. Electromyography, or EMG, shows the typical features of a muscle dystrophy. Muscle biopsy shows degenerating and regenerating muscle fibers, with connective tissue and fat replacing lost muscle tissue. DNA testing may also be done.