Vitamin B12
B vitamins are nutrients that your body needs to work well and stay healthy. There are eight different types. A vitamin B test checks the level of one or more B vitamins in a sample of your blood or urine (pee).
Vitamin B testing is used if you have symptoms that suggest you may not be getting enough of one or more B vitamins. For example, a vitamin B12 and folate test is often used for symptoms of certain types of anemia.
Source: MedlinePlus, U.S. National Library of Medicine
Normal range
No published reference range from a named lab yet.
What an abnormal result can be associated with
- A low result
- Decreased circulating vitamin B12 concentration
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.
Details
- Sample
- Serum or plasma · LOINC
- Listed under
- Anemia · B Vitamins · Folic Acid
- Code
- LOINC 2132-9 · pg/mL
- Also known as
- Cobalamin (Vitamin B12), Cobalamins, Cbl, Cobalamin