A member asked:

My level of b12 is 189 pmol/l. is that enough to maintain a good health?

A doctor has provided 1 answer
Dr. Roy Arnold answered

Specializes in Internal Medicine

Borderline: 148-221 pmol/L is considered borderline low and may indicate deficiency. It should be retested and the mean corpuscular volume (MCV) of your red blood cells measured. (Simple blood test) Your treating physician can recommend what to do about your level. Thanks for trusting HealthTap!

Answered 11/19/2014

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