Autoantibodies known as anti-muscle-specific kinase (Anti Musk) antibodies are made by the immune system to combat the bodys own muscle-specific kinase proteins. The Anti Musk Antibody test is used to measure the presence of autoantibodies in individuals with the autoimmune illness Myasthenia Gravis (MG). This test is required to assist identify MG from other illnesses that have symptoms that resemble MG such as weakness and exhaustion of the muscles. A positive test result could indicate myasthenia gravis which is treated with immunosuppressants corticosteroids and other drugs as well as treatments and surgery in the event of a tumour.