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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
VITAMIN B12 |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB3256 Geisinger Epic ID: 6587 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum (preferred). Plasma collected in plasma separator tube (PST) also acceptable. | |
Preferred collection container: |
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Alternate Collection Container: |
3 mL green/yellow-top (plasma separator) tube
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Specimen required: |
2 mL aliquot of serum (preferred) or plasma; minimum 0.5 mL. | |
| SPECIMEN PROCESSING |
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Specimen 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 |
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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 |
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Synonyms: |
B12, Cyanocobalamin, Cobalamin
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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 Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |