Does a positive result mean I have myasthenia gravis?

No. It supports a clinical evaluation that a clinician completes .

What does an equivocal result mean?

It falls between the negative and positive thresholds (0.31 to 0.49 nmol/L per Quest) and usually needs clinician interpretation and possibly further testing.

If this is negative, can I still have MG?

Yes. Binding antibodies can be absent in some people with MG, and other antibody tests may be considered .

Autoimmune and Immunology

Acetylcholine Receptor Binding Antibody

A blood test that measures acetylcholine receptor binding antibodies, used to help evaluate myasthenia gravis.