Vitamin b12 is high

Patient : My vitamin b12 is high, 1333 what does this mean
Symptoms:  tired
Doctor :   Vitamin B12 levels usually are never on the higher side. This can be seen as test false positive, where due to few condi tions the levels can be calibrated as high. If the levels are really high, it implicates that the patient is suffering from underlying disorders like liver failure, renal failure, blood cancers, etc. Followup with a physician for further advise.

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