I recently had a blood test to rule out peripheral neuropathy due to diabetes. It came back positive for MMN. I have already been diagnosed with acquired peripheral polyneuropathy. The neurologist wanted to start me on IVIg right away. I told him I wanted a second opinion since I have absolutely no symptoms of MMN. So in January 2015 I am going to the Univ of Washington to see another doctor for another opinion. Probably get another blood test, which is fine with me. There is only one lab value on the test that pointed to MMN. It was Asialo-GM-1 Ab (IgG) Results were 1:200 Reference range is <1:100 titer.