What sample is required?
The determination is made from a venous blood sample.
Is some kind of prior preparation necessary?
For this test you do not need any special preparation.
Why do the analysis?
It facilitates the diagnosis of anemia or neuropathy (nerve injury); to assess a person's nutritional status; to monitor the efficacy of treatment of vitamin B12 deficiencies.
When to do the analysis?
When there are signs and/or symptoms of anemia (weakness, tiredness, pale skin) and/or neuropathy (burning or tingling sensation, eye spasms, memory loss, altered mental status); when you are being treated for a vitamin B12 deficiency