What causes low IgA? My son has had his checked several times. He is not deficient. His last test showed he was at 56 and the range is 71-263. I've also been told when someone has low IgA that IVIG may not be an option. What is the reasoning behind this. I've tried to find research but I'm coming up empty handed. In all his testing, his IgA has never shown to be in a normal range.
My son's cardiologist is considering doing a low dosage of IVIG to see if it would help his low blood pressure and get rid of the antibodies. However, he has held off on this treatment because the Bixan seems to