Question

Anaemia is caused in man due to to deficiency of

• A. Folic acid
• B. Vit $B_{12}$
• C. Iron
• D. All of the above

Answer 1

The correct option is D All of the above

Anaemia is defined as a decrease in the amount of red blood cells or the amount of haemoglobin in the blood. There are three main types of anaemia - due to blood loss, decreased red blood cell production, and due to increased red blood cell breakdown. Causes of blood loss include trauma and gastrointestinal bleeding among others. Causes of decreased production include iron deficiency, a lack of vitamin B12, thalassemia and a number of neoplasms of the bone marrow among others. Causes of increased breakdown include a number of genetic conditions such as sickle cell anemia, infections like malaria and some autoimmune diseases among others. Folate-deficiency anaemia is a decrease in red blood cells due to a lack of folate. Folate is a type of B vitamin.