A 65-year-old male asked:
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if b12 levels are high >1999, and red & white blood levels are normal, should i be concerned about leukemia? b12 supplements were stopped 3 weeks ago.

1 doctor answer
Dr. Ed Friedlander
43 years experience Pathology
No: There's a fairly common form of leukemia in which B12 tends to go up. If your CBC is normal, you can be as confident that you do not have this particular form of leukemia as you can be confident you are not pregnant. Relax, friend. Everybody has a few labs out of range. You'll simply make your life harder than it already is if you let this stuff bother you. Be glad for good health.
Answered on Mar 21, 2019
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