Does the HbA1c alter in patients with hemochromatosis?

No, it is not. If you're wondering if the A1C is correct because you're diagnosed with hemochromatosis, I'm sure it is. If you've been diagnosed with diabetes it's probably because the disease damaged your pancreas. It can however get better as your blood is removed and the iron overload is corrected. If your A1C is lower than you've expected it could be that your diabetes improved once your iron levels improved. Diabetes caused by hemochromatosis is often referred to bronze diabetes.

your hemoglobin A1C is an average of 3 months blood sugar ....... if one has health problems ur A1C can definetly be affected but so would ur everyday blood glucose levels.
good luck

HbA1c or what we call in the lab as Glycohemoglobin is a measurement of sugar after 120 days time (3months) because this is the life span of a normal RBC. Now, if you have hemochromatosis, an iron overload, there will be alteration because iron is part of hemoglobin building block. But thanks to advancement of medical technology, we have machines which will just detect the sugar content of the cells without having to worry on the hemoglobin itself.HbAic is designed fro detection and monitoring of Diabetes and not of Hemochromatosis..better be requsting for TIBC or total iron binding capacity for this case. God bless