Vitamin B-12 Level
What do Abnormal Results Mean?
Values of less than 100 pg/ml indicate a significant deficiency of vitamin B-12, with symptoms likely to be present or develop.
Causes of vitamin B-12 deficiency include:
Increased vitamin B-12 levels are uncommon, because normally excessive B-12 is excreted in the urine. However, excessive B-12 may occur with disorders that affect the levels of proteins that attach to vitamin B-12 in the blood. These disorders include:
Additional conditions under which the test may be performed:
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