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vitamin B12 (cobalamin)

Name vitamin B12 (cobalamin)
Specimen requirements 1 ml of serum
Storage and transport protection from light,
deep-frozen transport and storage
Clinical utility megaloblastic anaemia, chronic gastritis, burning mouth syndrome, neurological symptoms such as paraesthesia with symmetrical distribution
Methodology CLIA (chemiluminescence immunoassay)
Reference ranges > 200 pg/ml
Diagnostic recommendation For an optimal concentration of homocysteine, the B12 levels should be over 250 pg/ml.