Anemia - B12 deficiency

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Megaloblastic anemia - view of red blood cells

Macrocytic anemia

You can prevent anemia caused by a lack of vitamin B12 by following a well-balanced diet. Vitamin B12 injections can prevent anemia after surgeries known to cause vitamin B12 deficiency. Early diagnosis and prompt treatment can limit the severity and complications of this anemia.

Antony AC. Megaloblastic anemias. In: Hoffman R, Benz Ej, Shattil SS, et al., eds. Basic Principles and Practice. 5th ed. Philadelphia, Pa: Elsevier Churchill Livingstone;2008:chap 39.

Kaferle J, Strzoda CE. Evaluation of macrocytosis. Am Fam Physician. 2009;79:203-208.

Review Date: 01/31/2010
Reviewed By: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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