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How is limb-girdle muscular dystrophy diagnosed?

The first step in diagnosing muscular dystrophy is a physical exam that includes a review of you and your family's medical histories. Then a doctor may perform one of several tests. Blood tests can check for levels of certain enzymes that indicate limb-girdle muscular dystrophy, and blood samples can also be used for DNA testing to diagnose certain forms of the disease. Muscle biopsy, which involves removing a small sample of muscle tissue to be analyzed under a microscope, can test for certain indicators of limb-girdle muscular dystrophies. In some cases, a doctor may use electromyography, which involves inserting a very thin electrode into your muscle to test electrical activity in your muscles.

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