Vitamin C

Normal range

3 published ranges, each from a named source

0.41.5 mg/dL drawn: all ages · American Board of Internal Medicine (Laboratory Test Reference Ranges)

Normal: 0.4–2 mg/dL (varies by lab)ABIM 0.4–1.5 · Mayo 0.4–2 mg/dL
Normal: 23–114 umol/L

These labs do not agree: the published adult ranges differ by up to 33%, so the same result can read as normal at one lab and be flagged at another — ABIM 0.4–1.5 · Mayo 0.4–2 mg/dL. Both are real published values, shown as each lab states them.

Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges), Mayo Clinic Laboratories (Test Catalog).

All source ranges (3)

Source	Sex	Age	Range
American Board of Internal Medicine (Laboratory Test Reference Ranges)	All	all ages	0.4–1.5 mg/dL
ARUP Laboratories Test Directory	All	all ages	23–114 umol/L
Mayo Clinic Laboratories (Test Catalog)	All	all ages	0.4–2 mg/dL

What an abnormal result can be associated with

A low result: Decreased circulating vitamin C 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
Collection: Green top (sodium or lithium heparin) (plasma gel/PST are not acceptable) tube · 1 mL · fasting · Mayo Clinic Laboratories (Test Catalog)
Code: LOINC 1903-4 · mg/dL
Also known as: Ascorbate, Ascorbic acid, Vit C, Vitamin C

See your own Vitamin C Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test