How is myasthenia gravis diagnosed?
The diagnosis of myasthenia can be challenging. No one test is positive 100% of the time. Examination findings are an important tool to make the diagnosis. Ice testing is another way to diagnose myasthenia. Tensilon and Prostigmin are injectable medications used for testing [See figure 2]. Laboratory testing can be helpful in diagnosing myasthenia. The acetylcholine receptor antibody can be detected with a blood test but is only positive in 50% of people with ocular myasthenia. An electromyogram (EMG) can also detect myasthenia.
