ANEMIA IN THE ELDERLY
| Clinical Overview | |
| Laboratory Parameters |
|
Vitamin B12 is important for DNA synthesis, metabolic reactions with folic acid, and maintenance of the neurologic system.
![]() |
![]() |
![]() |
Usual total daily requirements are 1-5 mcg and the body stores about 2-5 mg.13,15 The average diet contributes about 20 mcg of B12 daily such that it would take 3-4 years to develop a deficiency.13
Low levels are indicative of a vitamin B12 deficient, megaloblastic anemia.