Patient was educated on signs and symptoms of Vitamin B12  deficiency anemia as follows:

  1. Vitamin B12 is required for normal maturation of red blood cells in the human body. Mature red blood cells in circulation help pick up oxygen from the lungs, transport oxygen, and deliver it to the various body tissues.
  2. Deficiency of vitamin B12 can result in compromised and incomplete maturation of red blood cells. This can result in immature red cells in blood circulation that are poorly functional, in comparison to the mature red blood cells. Immature red blood cells are short-lived and do not survive for the length of time that normal mature red blood cells do. This can result in poor oxygen transport by red blood cells, reduced count of red blood cells, and anemia. Also, these immature red cells from vitamin B12 are big in size and so, this anemia is called megaloblastic anemia.
  3. Anemic patients with low red blood cell count present with deficient oxygen and nutrient transport to all the body tissues. The major symptoms of anemia arise from deficient transport of oxygen and nutrients by red blood cells and consequent compromised function of various body tissues.
  4. Vitamin B12 is also needed for synthesis of DNA, which carries the genetic information in all the cells of human body. Normal synthesis of DNA is important for healthy growth and cell division. Deficiency of vitamin B12 can result in compromised genetic material synthesis in all tissues of the body. This can result in defective growth and function of all body tissues, especially the skin and nervous tissues.
  5. Vitamin B12 helps with the body metabolism of dietary carbohydrates, fats, and protein and energy production.

Consequently, deficiency of Vitamin B12 in patients can present with the following signs and symptoms.

  • Arrhythmia: Compromised oxygen supply to the heart muscle can result in palpitations and worsening arrhythmias, with fluttering in the chest, racing or abnormally slow heartbeat, poorly felt pulse, dizziness, any episodes of loss of consciousness, chest pain and/or discomfort, and episodes of fainting.
  • Fatigue and listlessness: Compromised oxygen supply to the muscle tissue can result in cramping, weakness, fatigue, and exhaustion.
  • Skin and mucous membrane changes: Rich supply of blood and oxygen to the skin and mucus membranes is needed for pink, healthy coloration to the tissues. Low red cell count with deficient oxygen supply in anemic individuals result in pale coloration to skin and mucus membranes. Also, poor cell growth and division due to vitamin B12 deficiency can result in hair loss, graying of hair, and oral ulcers.
  • Poor metabolism: Compromised body metabolism with vitamin B12 deficiency can contribute to fatigue, listlessness, diminishing appetite, unusual weight gain, dry skin, hair loss, and depression.