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Specimen Collection Manual and Test Catalog

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VITAMIN B12

Geisinger Epic Procedure Code:  LAB3256    Geisinger Epic ID:  6587

SPECIMEN COLLECTION
Specimen type: 

Serum (preferred). Plasma collected in plasma separator tube (PST) also acceptable.


Preferred collection container: 
Alternate collection container: 
3 mL light green-top (plasma separator) tube
Specimen required: 

2 mL aliquot of serum (preferred) or plasma; minimum 0.5 mL.



SPECIMEN PROCESSING
Processing instructions: 

Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection.


Transport temperature: 

Refrigerated (preferred) or frozen.


Specimen stability: 

Refrigerated: 2 days. Frozen: 2 months.


Rejection criteria: 

Stability limits exceeded.



TEST DETAILS
Reference interval: 

232-1245 pg/mL


CPT code(s):  82607
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Test includes: 

Vitamin B12.


Methodology: 
Electrochemiluminescence
Synonyms: 

B12, Cyanocobalamin, Cobalamin


Clinical significance: 

Vitamin B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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