An elevated MCHC blood level on laboratory findings can also indicate a Vitamin B12 or folic acid deficiency.
A high MCH level in the blood can be due to a macrocytic anemia. This is typically an anemia caused by the inability of hemoglobin cells to divide properly before they get too big and are then inefficient at carrying the appropriate nutrients to the body. A Vitamin B12 deficiency, poisons, chemotherapy, alcoholism, and other chemicals that damage DNA which in turn doesn't make the blood components develop properly or split in time is also a factor in macrocytic anemia. In all these cases, the MCH will be elevated and an indicator of the physical disorder.