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Myasthenia Gravis

New blood test for MG?

04/16/2008

Question:

I was told that I only needed to be tested for MuSk, not Acetylcholine receptor antibodies, because the newer blood test picks up both antibodies. Is this true? Thank you.

Answer:

Anti MuSK and anti ACh receptor antibodies are different. Most MG patients are positive for one or the other. If a test is checking both, they should say so and also report both values. Hope this helps.

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Response by:

John G Quinlan, MD John G Quinlan, MD
Professor of Neurology
College of Medicine
University of Cincinnati