How do we evaluate a marginally low B12 level?

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How do we evaluate a marginally low B12 level?

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/3622

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Title: How do we evaluate a marginally low B12 level?
Author: Cravens, David D.; Nashelsky, Joan
Keywords: methylmalonic acid
homocysteine
vitamin deficiency
Date: 2007-01
Publisher: Family Physicians Inquiries Network
Citation: Journal of Family Practice, 56(1) 2007: 62-63.
Abstract: The best way to evaluate a low-normal B12 level is to check serum methylmalonic acid and homocysteine levels1 (strength of recommendation [SOR]: B, based on consistent level 2 or 3 studies). Give 1 or 2 mg of oral vitamin B12 a day if levels are marginally low and either methylmalonic acid or both methylmalonic acid and homocysteine are elevated (SOR: A).
URI: http://hdl.handle.net/10355/3622

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