What does it mean when the MCH is high in your cbc count?

MCH = Mean Corpuscular Hemoglobin.

It is a measure of the amount of hemoglobin in your red blood cells.

The ref. range for adults is between 28-32.

MCH [similar to the MCV] is elevated in: hereditary anemia(s), megaloblastic anemias (pernicious, folic acid deficiency, B12 deficiency), reticulocytosis, artifact (aplasia, myelofibrosis, hyperglycemia, cold agglutinins), liver disease, hypothyroidism, Drugs (anti-convulsants), zidovidune treatment (AIDS).