High levels of vit B12

A recent blood test reported very high levels of Vitamin B12. It was 1346 pg/ml (normal 180-914pg/ml). We are trying to figure out the cause. 2 weeks before this blood test she was admitted at a hospital because of high fever. And was given Neurobian Forte injection. Could that be the cause for spike in Vit B12?
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Dr. Manju Lihala
General Physician 36 yrs exp Kolkata
Yes Neurbion injection is the cause for the elevated Vit B12 levels. There is nothing to worry it will come down in a few days.
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