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Vitamin B12 Deficiency Panel
2012276
Ordering Recommendation

Not recommended for initial testing in suspected B12 deficiency. May be useful when B12 and MMA results alone are equivocal.

Mnemonic
VITA B12
Methodology
Quantitative Gas Chromatography/Mass Spectrometry
Performed
Varies
Reported
3-10 days
N/A
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Plain red or green (sodium or lithium heparin). 
Specimen Preparation
Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL) 
Storage/Transport Temperature
Frozen. 
Unacceptable Conditions
 
Remarks
 
Stability
Ambient: 24 hours; Refrigerated: 2 weeks; Frozen: 1 year 
Reference Interval
By report
Interpretive Data


Note
Test includes: Methylmalonic Acid, 2-Methylcitric Acid, Homocysteine, Cystathionine.
CPT Code(s)
82136; 83921 x2
Components
Component Test Code*Component Chart NameLOINC
2012277Vitamin B12 Deficiency Panel
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • B12 Metabolites
  • MMA/HCY

Performed at University of Colorado Metabolite Lab