After 2 years, he was admitted because of macrocytic anemia.
It is essential in red blood cell formation, and folic acid deficiency can lead to macrocytic anemia.
Macrocytic cells occur when division of RBC precursor cells in the bone marrow is impaired.
The MCH is usually elevated in macrocytic anemias associated with vitamin B 12 and folate deficiency.
The MCHC is low in microcytic, hypochromic anemias such as iron deficiency, but is usually normal in macrocytic anemias.
The most common causes of macrocytic anemia are vitamin B 12 deficiency, folate deficiency, and liver disease.
When the MCV is elevated, the RBCs will be larger than normal and are termed macrocytic.