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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Micronutrient, Vitamin B12
Test Code10194
CPT Codes
82607
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Amber vial
Instructions
Patients should be 18 years of age or greater
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Tues-Sat; Report available: 1-3 days
Reference Range
≥18 years | 200-1100 pg/mL |
Clinical Significance
B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders.