Goals and conditions · Health goal
Vitamin B12 and folate
Vitamin B12 and folate status, two B vitamins needed to make red blood cells and keep nerves working.
Biomarkers
Start with the primary markers, then add the companions that change how the primary result reads. Each link cites its source.
Folate (Folic Acid), SerumPrimary marker
The BSH guideline treats serum folate below 7 nmol/L (3 µg/L) as indicating folate deficiency.
Tests: Labcorp 7, Quest Diagnostics 6, with ranges on the biomarker page
Vitamin B12Primary marker
NICE uses total B12 (serum cobalamin) or active B12 as the initial test for B12 deficiency.
Tests: Labcorp 9, Quest Diagnostics 10, with ranges on the biomarker page
HomocysteineCompanion marker
The BSH guideline lists plasma total homocysteine as a supplementary test.
Tests: Labcorp 2, Quest Diagnostics 8
Methylmalonic AcidCompanion marker
NICE suggests serum methylmalonic acid when total or active B12 is indeterminate.
Tests: Labcorp 3, Quest Diagnostics 5
Related
Sources
We list which biomarkers a named source connects to this goal; we do not diagnose it. Interpret your own results with a licensed clinician, or track them in Aumnivida.