Macrocytosis: pitfalls in testing and summary of guidance.

Galloway, Michael; Hamilton, Malcolm · BMJ · 2007

review · Level V

Where this comes from

Abstract

Low vitamin B-12 levels can occur without deficiency being present, and normal levels don't always rule out vitamin B-12 deficiency. A clinical assessment, together with blood count and blood film results, can ensure a correct interpretation of vitamin B-12 and folate levels

Medical subject headings