What is a vitamin B12 blood test?
A vitamin B 12 blood test measures vitamin B12 deficiency in people. Not only this, it also helps in the diagnosis of a genetic disorder known as methylmalonic acedemia.
Last updated on 23 May 2023
Vitamin B 12 stays as a reserve in the body for atleast 2-4 years before the reserves starts depleting.
A serum vitamin B12 level between 200 pg/mL and 900 pg/mL is considered normal, however, values ranging between 300 to 350 pg/mL is recognised as a marker for a desirable status in the elderly.
If your B 12 levels are too high then you may be suffering from hematologic disorders like chronic myelogeneous leukemia, promyelocytic leukemia, polycythemia vera. To know the exact cause contact your doctor and do not ignore high levels of B12 as it can be life-threatening.
The role of vitamin B 12 is very crucial as without enough red blood cells, your tissues and organs don't get enough oxygen. As a result your body cannot work well. You will suffer from weak musles, numbness and extreme fatigue.
Pernicious anemia is one reason why B12 does not get absorbed in the body. The other reasons are lack of hydrocholoric acid in the stomach which can prevent B12 absorption.
Cyanocobalaomin, Methylocobalamin, Vit B12
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