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A 30-year-old male asked:

are there other labwork findings for b12 deficiency other than the serum level itself?

3 doctor answers3 doctors weighed in
Dr. Robert Grindstaff
Addiction Medicine 38 years experience
B12: not really
Dr. Stuart Hickerson
Family Medicine 32 years experience
B12: B12 deficiency is associated with the following abnormal labs: Anemia and an MCV (mean corpuscular volume) of greater than 110, Low WBC, low platelets and low reticulocyte count, urine mehylmalonic acid and plasma homocyteine increased
Dr. Olakitan Akinjagunla
Specializes in Internal Medicine
Yes: The CBC is the first test done. In patients with borderline serum levels or symptomatic patients with normal levels, Homocysteine and Methylmalonic Acid test can be used to exclude this diagnosis or confirm it.

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Canada
A 30-year-old male asked:

Can you have a B12 deficiency and have 'normal' serum B12 levels?

1 doctor answer1 doctor weighed in
Dr. Derrick Lonsdale
Preventive Medicine 73 years experience
Yes: Vitamin B 12 is used inside the cell and is the reason why measuring vitamins in the blood does not give you an answer that is practical.

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Last updated Sep 12, 2014
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