Re: just a question
In a routine CBC, the only thing that might indicate a further need for testing (for B12 deficiency) is the MCV value (mean corpuscle volume). If it's higher than normal, this indicates large red blood cells....called macrocytic anemia (I think), which is usually caused by either B12 or folate deficiency. Having a high MCV was my first indicator something was wrong, but when my B12 levels came back in the upper range, it got ignored. Wasn't til a few years later, with worsening symptoms, that low B12 was diagnosed from the methylmalonic acid marker (a better indicator anyway).