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A member asked:
How useful is a b12 level blood test? is that not just based on what you have recently ingested?
A doctor has provided 1 answer
Quite useful: If you can't absorb B12 (pernicious anemia, atrophic gastritis, fish tapework, no salivary glands, chronic pancreatitis, others), it'll let you know. Take a big dose and it still won't be super-high because plasma binding capacity is finite. I'm glad you're taking a proactive approach -- when the question is serious disease, trust your physician rather than internet disinformation.
Answered 6/24/2014
4.8k views
Related Questions
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Will most pcp test any blood values you request? Or would the patient have to show symptoms? For example could i get B12 and zinc levels checked?
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