A minimum of 30 days is required for repeat testing
180 – 1000
Normal absorption of B12 requires a non-vegetarian dietary source, a normal stomach to produce intrinsic factor, and a normal terminal ileum to absorb the B12/IF complex.
A healthy person with replete body stores has enough B12 to last 3-6 years if no more is ingested.
Low B12 levels
Elevated B12 levels
Can be added on to an existing request up to 32 h following sample receipt
2 monthsSpecimen Labelling Procedure